ChemAlliance Plant Tour: All GMPs

Applicable Process	GMP	Notes
Boiler and Steam System	Cogeneration from 'waste' heat	Consider cogeneration options for generating electricity or using "waste" heat. Or, conversely using waste heat from electrical generation to produce steam.
Boiler and Steam System	Continuously monitor and control water chemistry	Continuously monitoring & controlling water chemistry reduces water treatment chemical use and improves performance.
Boiler and Steam System	Improve boiler combustion efficiency	Improve boiler combustion efficiency
Boiler and Steam System	Insulate steam lines	Insulate steam distribution and condensate return lines
Boiler and Steam System	Maintain steam traps	Inspect and repair steam traps
Boiler and Steam System	Minimize boiler blowdown	Minimize boiler blowdown to save on treatment chemistry and wastewater generation
Boiler and Steam System	Monitor & Repair Steam Leaks	Develop a maintenance program to test for and fix steam leaks.
Boiler and Steam System	Monitor stack gases	By monitoring stack gases, inputs to boilers can be adjusted for optimum efficiency.
Boiler and Steam System	Recover waste heat	Use feedwater economizers for waste heat recovery
Boiler and Steam System	Replace coil	Replace coil, investigate alternative designs.
Boiler and Steam System	Return condensate	Return hot condensate to the boiler to reduce the energy needed to heat fresh water.
Boiler and Steam System	Use existing steam	Use existing steam superheat.
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Bulk Chemical Transfer Equipment	Absorption	Absorption (activated carbon, molecular sieve, etc.)
Bulk Chemical Transfer Equipment	Collect emissions	Collect emissions from vents and either return them to the process, condensation or venting to thermal oxidizer.
Bulk Chemical Transfer Equipment	Color code & label valves	When several connections are possible use color codes, labeling, electronic sensors or even different size and type of connectors to ensure proper connections.
Bulk Chemical Transfer Equipment	Condensation	Condensation
Bulk Chemical Transfer Equipment	Eliminate splash filling	Eliminate splash filling of volatile liquids by filling from the bottom either by using pressure feed from a bottom valve or a long probe to the bottom from the top.
Bulk Chemical Transfer Equipment	Overfill protection	All tanks should have at least two levels of protection against overfilling. Strategies for protection include passive (i.e., secondary containment), alarms, and active (i.e., automatic shut off).
Bulk Chemical Transfer Equipment	Protect transfer points from stormwater	Protect transfer points from rain and snow. Operators will probably operate more cautiously if they are protected from the weather.
Bulk Chemical Transfer Equipment	Provide shutoff valves	Provide shut off valves as near to end of hose as possible to minimize product retained in loose hose. Provide buckets to drain hoses into.
Bulk Chemical Transfer Equipment	Remove more product (heels)	Look for ways to remove more product from tanks and reduce heels that become waste such as mechanical wipes or pumping from a small low point in the tank.
Bulk Chemical Transfer Equipment	Use drip pans	Use drip pans under connections to collect small drips
Bulk Chemical Transfer Equipment	Use dry disconnects	Use dry disconnects to minimize product losses from hose disconnection, they also serve as safety shut off if valves are not closed.
Bulk Chemical Transfer Equipment	Use sumps to collect spills	Transfer points should be performed on pad with sumps to collect spills.
Bulk Chemical Transfer Equipment	Use wet/dry vacuum to collect small spills	Rather than rinsing with water (which then has to be treated) use vacuum to collect small spills of material. If material can't be used treat or dispose of concentrate rather than diluted waste stream.
Bulk Chemical Transfer Equipment	Vapor balance tanks	Vapor balance tanks
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Construction Area	Create storage for reusable contruction materials	Establish storage areas for recyclable materials during facility construction or modification.
Construction Area	Minimize emissions during activities.	Take precautions to minimize the release of gases, vapors, and exhaust emissions during site development and construction activities. Use dust palliatives and soil waterproofers to mitigate air quality impacts.
Construction Area	Minimize material use.	Use minimum quantities of materials (including hazardous or nonhazardous) for construction.
Construction Area	Predetermine pipe integrity before backfilling	Test underground piping for pipe and joint integrity before backfilling.
Construction Area	Reuse scrap wastes	Evaluate potential scrap wastes from processing been for possible treatment or further processing that would make them reusable in another process.
Construction Area	Substitute non-hazardous for hazardous materials	For example, use lead-free solder when possible.
Construction Area	Test waste management systems during construction	Test chemical and/or waste management systems during the construction phase by using simulation or by using chemicals and wastes generated during construction.
Construction Area	Use a minimum number of different raw materials	Minimize the number of different raw materials used in construction (e.g., plastics, metals, etc.), as well as the number of different chemicals, solvents, or cleaning products.
Construction Area	Use disease-resistant construction materials	Whenever possible, use non-toxic raw materials that are resistant to termite infestation for building construction.
Construction Area	Use precut/premanufactured materials	Whenever possible, use precut and/or premanufactured construction materials to minimize onsite waste generation during construction.
Construction Area	Use recycled materials for road construction	For example, concrete from demolition may be crushed and reused for road beds or aggregate and recycled asphalt or asphalt containing recycled tires may be used for road construction.
Construction Area	Use recycled-content building materials	Give preference to specification and purchase of recycled materials or products containing recycled materials. For example, recycled gypsum board, building insulation products, paper, cement containing fly ash, etc
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Cooling Tower	Blowdown water	Use blowdown water for non-critical cleaning applications or as fire pond water.
Cooling Tower	Less toxic biocides	Use less toxic biocides instead of chlorine gas and chromium compounds.
Cooling Tower	Monitor water quality	Continuously monitor water quality and adjust treatment chemical concentration.
Cooling Tower	Plastic lumber	Use plastic lumber to replace wooden slats.
Cooling Tower	Reuse cooling and blowdown water	Reuse cooling tower or boiler blowdown for non-critical process cleaning (such as washing floors or external surfaces).
Cooling Tower	Use other wastewater streams	Look at other wastewater streams as source for cooling tower water.
Cooling Tower	Use RO water	Investigate use of RO water as input if mineral build-up is a problem.
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Environmental Management System	Implement an inventory tracking system	Implement a central database for tracking process materials, as well as office supply materials. Use computer networks for electronic communication and record keeping to minimize the use of paper.
Environmental Management System	Use a charge-back system	Implement a charge-back system to track true costs of wastes.
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Furnace/Process Heater	Cogeneration from 'waste' heat	Consider cogeneration options for generating electricity or using "waste" heat. Or, conversely using waste heat from electrical generation to produce steam.
Furnace/Process Heater	Replace furnace	Replace furnace with intermediate exchanger, use high temperature transfer fluid.
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Hazardous Waste Storage Shed	Have spill kits available	Spill kits should be readily available in areas where transfer is done.
Hazardous Waste Storage Shed	Isolate non-compatible chemicals	In case of spills, make certain non-compatible chemicals can not react with each other.
Hazardous Waste Storage Shed	Limit access	Limit access to a few responsible individuals, you should physically separate storage from hazardous raw materials.
Hazardous Waste Storage Shed	Protect storage space	Provide storage space protected from the environment. (Rainwater in hazardous waste storage sites should either be tested or treated as hazardous waste.)
Hazardous Waste Storage Shed	Provide drum funnels	If liquid is transferred to drums from buckets, provide drum funnels and grounding straps for flammable materials.
Hazardous Waste Storage Shed	Raise drums	Metal drums should be placed off of floor. (Cold concrete acts to condense water on drums leading to corrosion. A secondary containment pallet can be used to lift drum off the floor.)
Hazardous Waste Storage Shed	Seal concrete floors	Seal concrete floors so spilled waste does not permeate though concrete and cracks.
Hazardous Waste Storage Shed	Separate incompatible materials	Provide barriers between incompatible materials (i.e., strong acids, bases, and organics).
Hazardous Waste Storage Shed	Use "Flammable" cabinets	Flammable materials in opened containers should be stored in flammable cabinets. Cabinets should be grounded and if feasible, vented to the outside.
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Heat Exchanger	Cathodic protection	Tubes with water and in them should have cathodic protection to inhibit corrosion.
Heat Exchanger	De-superheat steam	De-superheat steam.
Heat Exchanger	Install thermocompressor	Install thermocompressor.
Heat Exchanger	Lower steam pressure	Use lower pressure steam.
Heat Exchanger	Monitor fouling	Monitor exchanger fouling.
Heat Exchanger	Non-corroding tube	Use non-corroding tube.
Heat Exchanger	On-line cleaning	Use on-line cleaning techniques (recirculating sponge balls and reversing brushes).
Heat Exchanger	Reduce wall temperature	Reduce tube-wall temperature.
Heat Exchanger	Scraped-wall exchanger	Use scraped-wall exchanger for viscous streams.
Heat Exchanger	Staged heating	Use staged heating (waste heat, then low pressure steam, then de-superheated high pressure steam).
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Incinerator/Oxidizer	Generate useful products from thermal destruction	Rather than just incinerating, investigate the possibility of using a thermal destruction process where a useful product is generated in the process for onsite/offsite reuse.
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Injection Well
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Laboratory	Analyze without chemicals	Look for analytical methods that do not require additional solvents or chemical treatment.
Laboratory	Electronic thermometers and barometers	Use electronic or non-mercury thermometers and barometers.
Laboratory	Inline monitoring	Perform in-line monitoring.
Laboratory	Inline sampling	Use inline non-destructive sampling
Laboratory	Inventory Control	Computerize chemical inventory to reduce buying and out of data chemicals
Laboratory	Return unused sample	Return unused sample to process (or client).
Laboratory	Review frequency and size	Review sampling frequency and procedure to reduce number and quantity.
Laboratory	Review procedures	Review sampling procedures to minimize amount needed to collect a representative sample.
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Landfill	Cover landfills	Cover all landfills to reduce leachate treatment costs
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Maintenance	Check for compressed air leaks	Check for compressed air leaks
Maintenance	Check for steam, water and air leaks	Compressed air and steam leaks typically account for energy losses of 20% in many companies.
Maintenance	Chose energy efficient motor drives	Selecting the proper type of belt drive systems can save energy
Maintenance	Compatible materials	Make certain maintenance materials are compatible with process chemicals and treatment facilities.
Maintenance	Develop TPM program	Develop Total Productive Maintenance (TPM) program.
Maintenance	Do compressed air audits	Make certain that the compressed air system and uses are matched for best efficiency
Maintenance	Drain filters	Remove and drain all oil and filters from equipment before scrapping.
Maintenance	Eliminate electric motor voltage unbalance	Eliminate electric motor voltage unbalance
Maintenance	Eliminate improper use of compressed air	Eliminate improper use of compressed air where low pressure air is needed
Maintenance	Install air drying system in compressed air units	Moisture in compressed air systems reduces efficiency and can cause piping to corrode
Maintenance	Maintain compressed air system	Maintain compressed air system
Maintenance	Minimize scrap	Keep scrap yard to a minimum. Inventory and store good parts, recycle or dispose of all others.
Maintenance	Oil management	Develop an oil management system to monitor use of all lube, compressor, and vacuum oils.
Maintenance	Recover heat from compressed air	Recover heat from compressed air
Maintenance	Recycle aerosol cans	Depressurize (puncture) and drain aerosol cans and recycle as scrap steel.
Maintenance	Use outside air for intake to air compressor	Cold air is easier to compress than hot are. Compressors are usually in hot closed rooms, using cold outside are can reduce energy use by at least 10%
Maintenance	Variable drive electric motors	Replace fixed speed electric motors with variable frequency drive motors
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Mixer	(see Reactor)
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Office	Consider "Green" Building Design	70% of total lifetime energy costs are locked in after 1% of the construction costs have been spent on design
Office	Facilitate bulk material use	Design the office to handle bulk materials (as opposed to materials in single use packages) to minimize secondary waste generation associated with packaging and containers.
Office	Recycle fluorescent bulbs	Florescent bulbs and mercury vapor lights can sometimes be considered hazardous waste. Keep isolated from other solid wastes and locate a company that recycles them.
Office	Recycle paper for packing material	Reuse waste paper and corrugated cardboard to generate packing material.
Office	Use energy-efficient appliances	Use energy-efficient and/or resource-efficient office machines and appliances (e.g., computers, printers, copiers, refrigerators, water heaters, etc)
Office	Use recycled products	Give preference to specification and purchase of recycled materials or products containing recycled materials (e.g., paper, plastic, other.)
Office	Use suppliers that take back packaging	Give preference to suppliers that take back containers and packaging materials.
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Packaging	Use liners	Use liners so containers are easy to clean & reuse.
Packaging	Use recyclable packaging	Use recyclable packaging and containers.
Packaging	Use returnable packages	Use returnable packages (such as totes) if shipping to supplier is cheap.
Packaging	Use standard pallets	Design packaging to use standard pallets.
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Process Equipment Cleaning	Add energy	Add energy to less toxic cleaning fluids in the form of heat, high pressure or ultrasonics to make them as effective as more toxic cleaners.
Process Equipment Cleaning	Assign cleaning and downtime costs	Assign cleaning and downtime cost to production. Make sure sales and customers know what costs are incurred for interrupted schedules.
Process Equipment Cleaning	Design to clean in place	Consider clean in place strategies so equipment doesn't need to be disassembled for cleaning.
Process Equipment Cleaning	Document procedures	Document all cleaning procedures and base procedures on performance measurements, determining how clean is clean enough is critical to reducing costs. Know what the customers needs really are for quality and give price breaks for less cleaning.
Process Equipment Cleaning	Eliminate 'dead' zones	Eliminate dead zones in piping.
Process Equipment Cleaning	Enclosed cleaning system	Design equipment so that it can be automatically cleaned in an enclosed system to reduce emissions, worker exposure and time.
Process Equipment Cleaning	Keep surfaces smooth	Keep surfaces of tanks and lines smooth to reduce product cling, evaluate coatings (Teflon/glass) or polishing surfaces.
Process Equipment Cleaning	Maximize equipment dedication	Maximize equipment dedication.
Process Equipment Cleaning	Minimize cleaning	Design the system to minimize cleaning, eliminate blind low spots, blind holes and slope walls to an extraction point in the bottom of the reactor or tank.
Process Equipment Cleaning	Multiple stage rinsing	Use multiple stage rinsing.
Process Equipment Cleaning	Recirculate solvent	Recirculate cleaning solvent rather than just flushing with fresh solvent.
Process Equipment Cleaning	Reuse cleaner	Reclaim and reuse cleaner if feasible.
Process Equipment Cleaning	Select new solvent	Select a solvent that can be reused in the process without generating a waste. Clean process equipment with process fluids if possible.
Process Equipment Cleaning	Spring loaded valves	Put spring loaded valves on all hoses so they are not let running.
Process Equipment Cleaning	Standardize cleaning products	Standardize cleaning products used.
Process Equipment Cleaning	Use in-line mixers	Consider in line mixers instead of bulk tanks for mixing.
Process Equipment Cleaning	Use less cleaner	Use less cleaner (by using high pressure sprays, pressurized air, steam and heated cleaning bath, etc.)
Process Equipment Cleaning	Use mechanical wiping	Use mechanical wiping to remove product from surfaces before washing.
Process Equipment Cleaning	Use raw material for cleaning	Use raw material for cleaning solvent and substitute for virgin solvent.
Process Equipment Cleaning	Use reusable filter media	Use reusable filter media to reduce solid waste and recover particulate material if it has value.
Process Equipment Cleaning	Use ultrasonics	Use ultrasonic energy to speed up cleaning time or to enable the use of less toxic cleaners
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Product Stewardship	(no GMPs currently available)
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Public Communications	(no GMPs currently available)
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Pumps, Valves & Piping	"Pig" lines	Pig lines rather than flush with solvents. Add turbulence to line flushing to increase cleaning effectiveness.
Pumps, Valves & Piping	Double pig long lines	Use two pigs with a slug of cleaning solvent between them to clean long distribution lines.
Pumps, Valves & Piping	Leak Detection & Repair Program	Monitor all valves, pumps and flanges for excess leaks and repair when emissions greater than 50ppm
Pumps, Valves & Piping	Recover seal flushes	Recover seal flushes and purchase and recycle to process where possible.
Pumps, Valves & Piping	Size pipes correctly	Size pipes correctly to reduce load on pumps and save energy and maintenance shut downs
Pumps, Valves & Piping	Turn off pump flush	Turn off flush when not in use.
Pumps, Valves & Piping	Use rupture disks	Use rupture disks instead of pressure relief valves. (Make certain to capture releases from rupture disks.)
Pumps, Valves & Piping	Use seal-less pumps	Use seal-less pumps (can-type, magnetically driven or gas sealed pumps).
Pumps, Valves & Piping	Work with vendors	Work with vendors to ensure new equipment meets leak performance standards.
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Raw Materials	Market co-product	Find a market for co-product.
Raw Materials	Reformulate products	Reformulate products (e.g. prepare chemicals in pellet form instead of powder to reduce dust emissions).
Raw Materials	Reuse dust emissions	Segregate and reuse dust emissions in the production process.
Raw Materials	Substitute for toxic materials	Substitute less toxic or non-toxic raw materials.
Raw Materials	Use waste streams	Look for waste streams from other processes to be used as raw materials.
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Reactor	Automate startup, shutdown, changeover	Automate start-ups, shutdowns and product changeover.
Reactor	Change reactor design	Consider different reactor design (e.g., plug flow instead of stirred-tank back mix).
Reactor	Collect emissions	Collect emissions from vents and either return them to the process, condensation or venting to thermal oxidizer.
Reactor	Design for cleaning	Design reactors for easy of cleaning by minimizing surfaces, allowing better access or by lining surfaces to reduce product cling.
Reactor	Distribute feeds	Distribute feeds better for better yield conversion, both inlet and outlet.
Reactor	Divert into neutralization tanks	Consider diversion into neutralization tanks if disks rupture on the reactor.
Reactor	Document loss leaders	Loss-leaders (e.g., the extra amount you plan to make to insure to meet a given volume of production) are documented and reviewed as processes are modified.
Reactor	Improve catalyst	Improve catalyst and continuously upgrade.
Reactor	Improve control	Improve on-line control (e.g., with computer control system).
Reactor	Improve feed process	Improve ways reactants are introduced into reactor (perfect ideal reactant concentrations before feeds enter reactor).
Reactor	Improve heat transfer	Improve heating and cooling techniques for reactor.
Reactor	Improve mixing	If unreactive raw materials are a waste problem investigate ways to improve physical mixing in reactor by installing baffles, high rpm motor for agitator, different mixing blade design, multiple impellers, pump recirculation or an in-line static mixer.
Reactor	In-lin monitoring of reaction	Use continuous in-line monitoring to base control decisions to increase process efficiency.
Reactor	Monitor rubber gaskets	Ensure that rubber gaskets are not cracked or worn.
Reactor	Optimize daily operation	Optimize daily operation.
Reactor	Program for unexpected trips	Program plant to handle unexpected upsets and trips.
Reactor	Redesign processes	Redesign or modify processes and technologies to recover product and unconverted raw materials.
Reactor	Separation reactors	Look into separation reactors that remove products as they form to drive reaction to products and reduce secondary reactions.
Reactor	Use SPC methods	Use Statistical Process Control methods to analyze relationship of process control to output quality.
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Remediation Area	Constructed wetland treatment	Treatment using surface water systems (wetlands) can greatly reduce energy needs
Remediation Area	In-Situ Treatment	Natural attenuation of chlorinated hydrocarbons has been implemented in some sites
Remediation Area	Natural habitat restoration	When using wetlands for treatment consider further upgrades to provide greenspace or even habitat restoration
Remediation Area	No/Low stormwater discharge	Minimize water infiltration into remediation zone to reduce leachate production
Remediation Area	Recycle or recover material	For more concentrated contaminates consider recover over treatment
Remediation Area	Reuse of treated leachate	Use treated leachate water for landscape watering in non-critical areas.
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Separation Process	Add sections	Add section to column (e.g., with different diameter, trays, high efficiency packing).
Separation Process	Change feed tray	Change feed tray for better separation.
Separation Process	Clear tubes	Ensure that tubes are not blocked.
Separation Process	Forward vapor overhead	Forward vapor overhead to next column (use partial condenser and introduce vapor stream to downstream column).
Separation Process	Improve condensers	Improve overhead condensers (retubing, condenser replacement, supplemental vent condenser addition).
Separation Process	Improve feed distribution	Improve feed distribution, especially for packed column.
Separation Process	Increase reflux	Increase reflux ratio if column capacity is adequate.
Separation Process	Increase vapor line	Increase size of vapor line.
Separation Process	Insulate	Insulate.
Separation Process	Lower column pressure	Lower column pressure.
Separation Process	Lower distillation pressure	Lower distillation pressure to reduce steam use.
Separation Process	Modify reboiler	Modify reboiler design (falling film or pumped recirculation reboilers, high-flux tubes).
Separation Process	Preheat feed	Preheat column feed (e.g., by cross exchange with another stream).
Separation Process	Recover distillation bottoms	Often distillation bottoms become waste when additional processing can recover valuable products.
Separation Process	Reduce reboiler temp	Reduce reboiler temperature (e.g., using lower pressure steam, de-superheated steam, installing thermocompressor, using intermediate transfer fluid).
Separation Process	Remove overhead from tray	Remove overhead products from tray near top of column.
Separation Process	Retray or repack	Retray or repack column.
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Solid Waste Recycling	Deconstruction	Consider reuse of building materials during demolition
Solid Waste Recycling	Segregate and charecterize solid wastes	One companies waste can sometimes be used as raw material inputs into a different process.
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Stack Emissions	Biofiltration	Consider biofiltration for low volume, low concentration organic vapors.
Stack Emissions	Collect pollutants at source	Collect concentrated pollutants as close to the source as possible, volume and dilution drive up treatment costs.
Stack Emissions	Filter particulates & recirculate	For facilities with equipment inside, if you are just filtering particulates, filter so air is clean enough to breath and recirculate in the plant to save HVAC costs.
Stack Emissions	Pressure drop across filters	Monitor pressure difference across filter media to detect rips or loading of filters.
Stack Emissions	Recoverable adsorbents	Use recoverable adsorbents to concentrate dilute organics rather than heating up a lot of air.
Stack Emissions	Reusable filter media	Consider reusable filter media that can be cleaned by shakers or air horns, this will both reduce solid wastes and automate the cleaning process.
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Storage Tanks	Agitation	Use agitation to reduce build up of contaminates.
Storage Tanks	Cathodic protection	Underground tanks, tanks sitting on the ground or tanks holding electrolytes should have cathodic protection to inhibit corrosion.
Storage Tanks	High-pressure spray nozzles	Use automated high pressure spray nozzles for cleaning.
Storage Tanks	Internal floats	Consider internal floats to reduce volatile emissions.
Storage Tanks	Overfill protection	All tanks should have at least two levels of protection against overfilling. Strategies for protection include passive (i.e., secondary containment), alarms, and active (i.e., automatic shut off).
Storage Tanks	Pressurized tanks	Consider pressurized tanks for small storage to reduce volatile emissions.
Storage Tanks	Use robotics to inspect tanks	Rather than empty tanks for inspection use robotics to inspect in-use tanks.
Storage Tanks	Use ultrasonics to clean	Use ultrasonic energy to speed up cleaning time or to enable the use of less toxic cleaners
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Stormwater	Collect storm water	Consider collecting stormwater for fire ponds, cooling tower use or non-critical equipment clean purposes.
Stormwater	Collect water in fire ponds	Collect water for emergency fire water storage.
Stormwater	Cover containment dikes	Cover secondary containment dikes to avoid collecting water in potentially contaminate areas.
Stormwater	Cover landfills	Cover all landfills to reduce leachate treatment costs
Stormwater	Cover transfer points	Cover all loading and transfer points (and make sure cover goes beyond drainage areas). Besides for reducing loads on wastewater facilities, operators will stay dry and might be less in a hurry and less prone to make mistakes.
Stormwater	Valves on stormwater discharge points	Put gate vales on stormwater discharge points that can be shut in case of a large spill into stormwater system.
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Warehouse Operations, including Forming	Central chemical approval	Set up central approval for purchasing chemicals.
Warehouse Operations, including Forming	Computerized inventory	Set up computerized inventory of all chemicals between laboratories (tie into MDSD information.
Warehouse Operations, including Forming	Improve scheduling	Schedule production so less quality sensitive products are done last (such as do light colors first and darker colors last).
Warehouse Operations, including Forming	Isolate hazardous waste from chemical storage	Keep hazardous waste areas separated from other chemical inventory areas.
Warehouse Operations, including Forming	Isolate incompatable chemicals	Keep incompatible chemicals in different areas protected by separate secondary containment.
Warehouse Operations, including Forming	Reduce buying	Buy only what you can use.
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Wastewater Treatment Unit	Allocate costs	Allocate wastewater treatment costs to production units or products produced.
Wastewater Treatment Unit	Eliminate drops	VOC's are stripped from wastewater when water falls into outfalls. Allow water to fill from bottom to reduce emissions.
Wastewater Treatment Unit	Eliminate open ditches	Eliminate open ditches to transport wastewater to reduce volume from stormwater and emissions of VOC's.
Wastewater Treatment Unit	Enclosed systems	For small systems (~10,000 gallons) use totally enclosed treatment systems to eliminate emissions of VOC's.
Wastewater Treatment Unit	Line basin	Line wastewater treatment basin to prevent transport of contaminates.
Wastewater Treatment Unit	Monitor dissolve oxygen	Monitor dissolved oxygen in aerobic treatment systems and adjust aeration to keep at optimal levels.
Wastewater Treatment Unit	Monitor input water quality	Monitor quality of input water to make certain problems are not external to the plant..
Wastewater Treatment Unit	Monitor sewer lines	Monitor sewer lines for leaks.
Wastewater Treatment Unit	Neutralize with waste material	Instead of using fresh acid/base to neutralize a waste stream look for other waste streams to help neutralize the pH.
Wastewater Treatment Unit	Reuse effluent	If wastewater is not hazardous, consider where effluent from treatment could be used in the facility.
Wastewater Treatment Unit	Treat at source	Treat highly concentrated or unusual wastes at source before it is diluted with other process wastewater.
Wastewater Treatment Unit	UV/Ozone disinfecting	Consider UV/Ozone instead of chlorine disinfecting, especially if discharging to waterway where chlorine loading could be a problem.
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ChemAlliance Plant Tour: All Good Management Practices (GMPs) (223 total)

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