How to use EPCRA Section 313 chemicals to remediate wastes?
• Chemical treatment – Phosphate is an anion: PO. 4 3-– Cations can be added to bind with phosphate •Ca. 2+ •Al. 3+ •Fe. 3+ ... being a direct connection between the wastewater treatment plant and the water treatment plant . Questions? Title: Wastewater Basics 101. Author: John R. Buchanan Subject: Webinar presentation
What is a chemical release under EPCRA?
As an example, metals are not destroyed during treatment activities; and the facility would have to make release and other waste management calculations for the metals, provided they meet the reporting threshold.Starting January 1, 1998, facilities must count the amount of an EPCRA section 313 chemical manufactured during the destruction of waste received from off-site …
Does the status of a toxic chemical under RCRA impact EPCRA regulations?
sufficient in most cases, phases should be individually adapted and optimized for each plant. SBRs are also suited for sites that need minimal operator attendance and that have a wide range of inflow and/or organic loadings. Industries with high BOD loadings, such as chemical or food processing plants, will find SBRs useful for treating wastewater.
How many chemicals are on the section 313 chemical list?
Simple chemicals such as alum, lime or iron salts can be added to wastewater to cause certain pollutants, such as phosphorus, to floc or bunch together into large, heavier masses which can be removed faster through physical processes.
What is a section 313 chemical?
What EPCRA 313?
What does EPCRA stand for?
What chemicals must be reported on Tier II?
What is EPCRA Tier II?
Is the EPCRA effective?
What are the key provisions of EPCRA?
How do you calculate reportable quantity?
What is Tier 2 EPA?
Tier II forms require basic facility identification information, employee contact information for both emergencies and non-emergencies, and information about chemicals stored or used at the facility. EPA recently revised the Tier II form to include additional data elements which would be useful of local planners and responders.
Who must submit MSDSs?
Facilities must submit MSDSs (or SDSs), or a list of hazardous chemicals, to their State Emergency Response Commission (SERC), Local Emergency Planning Committee (LEPC) and local fire department.
How to do an inventory form?
The following is a list of some of the information required on the inventory form: 1 The chemical name or the common name as indicated on the MSDS (or SDS) 2 An estimate of the maximum amount of the chemical present at any time during the preceding calendar year and the average daily amount 3 A brief description of the manner of storage of the chemical 4 The location of the chemical at the facility 5 An indication of whether the owner of the facility elects to withhold location information from disclosure to the public
Where are package treatment plants used?
They are most often used inremote locations such as trailer parks, highway restareas, and rural areas.
Where is the Aldie Wastewater Treatment Plant located?
The Aldie Wastewater Treatment Plant, located inAldie , Virginia, is an extended aeration facilitywhich treats an average of 0.0031 MGD with adesign flow of 0.015 MGD. This technology waschosen because it would allow the area to meetpermit requirements while minimizing land use.The plant consists of an influent chamber whichdirects the flow to two parallel aeration basins,parallel clarifiers, and a UV disinfection system.
What is extended aeration?
The extended aeration process is one modificationof the activated sludge process which providesbiological treatment for the removal ofbiodegradable organic wastes under aerobicconditions. Air may be supplied by mechanical ordiffused aeration to provide the oxygen required tosustain the aerobic biological process. Mixing mustbe provided by aeration or mechanical means tomaintain the microbial organisms in contact withthe dissolved organics. In addition, the pH must becontrolled to optimize the biological process andessential nutrients must be present to facilitatebiological growth and the continuation of biologicaldegradation.
What is sequencing batch reactor?
sequencing batch reactor (SBR) is a variation ofthe activated sludge process. As a fill and draw orbatch process, all biological treatment phases occurin a single tank. This differs from the conventionalflow through activated sludge process in that SBRsdo not require separate tanks for aeration andsedimentation (Kappe, 1999). SBR systems containeither two or more reactor tanks that are operated inparallel, or one equalization tank and one reactortank. The type of tank used depends on thewastewater flow characteristics (e.g. high or lowvolume). While this setup allows the system toaccommodate continuous influent flow, it does notprovide for disinfection or holding for aeratedsludge.
What are the components of an oxidation ditch?
Key components of a typical oxidation ditchinclude a screening device, an influent distributor(with some systems), a basin or channel, aerationdevices (mechanical aerators, jet mixers, ordiffusers, depending on the manufacturer), asettling tank or final clarifier (with some systems),and an RAS system (with some systems).Typically , the basin and the clarifier areindividually sized to meet the specific requirementsof each facility. These components are often builtto share a common wall in order to reduce costs andsave space (Lakeside, 1999).Concrete tanks are typically used when installingpackage plant oxidation ditches. This results inlower maintenance costs as concrete tanks do notrequire periodic repainting or sand blasting.Fabricated steel or a combination of steel andconcrete can also be used for construction,depending on site conditions (Lakeside, 1999).
What is a package plant?
Package plants are pre-manufactured treatmentfacilities used to treat wastewater in smallcommunities or on individual properties .Accordingto manufacturers, package plants can bedesigned to treat flows as low as 0.002 MGD or ashighas 0.5 MGD,although they more commonlytreatflows between 0.01 and 0.25 MGD (Metcalfand Eddy, 1991).
How are chemicals used in wastewater treatment?
Chemicals can be used to create changes in pollutants that increase the removal of these new forms by physical processes. Simple chemicals such as alum, lime or iron salts can be added to wastewater to cause certain pollutants, such as phosphorus, to floc or bunch together into large, heavier masses which can be removed faster through physical processes. Over the past 30 years, the chemical industry has developed synthetic inert chemicals know as polymers to further improve the physical separation step in wastewater treatment. Polymers are often used at the later stages of treatment to improve the settling of excess microbiological growth or biosolids.
What is the function of a wastewater treatment plant?
The basic function of the wastewater treatment plant is to speed up the natural processes by which water purifies itself. In earlier years, the natural treatment process in streams and lakes was adequate to perform basic wastewater treatment.
Why is wastewater treatment needed?
Wastewater treatment is needed so that we can use our rivers and streams for fishing, swimming and drinking water. For the first half of the 20th century, pollution in the Nation’s urban waterways resulted in frequent occurrences of low dissolved oxygen, fish kills, algal blooms and bacterial contamination.
What is the first stage of wastewater treatment?
The initial stage in the treatment of domestic wastewater is known as primary treatment. Coarse solids are removed from the wastewater in the primary stage of treatment. In some treatment plants, primary and secondary stages may be combined into one basic operation. At many wastewater treatment facilities, influent passes through preliminary treatment units before primary and secondary treatment begins.
What is wastewater lagoon?
Lagoons. A wastewater lagoon or treatment pond is a scientifically constructed pond, three to five feet deep, that allows sunlight, . Brush Aerators in an Oxidation Ditch Centerfeed well of a clarifier for removing excess biomass.
What is the most commonly used disinfectant in wastewater?
Processes used to kill or deactivate these harmful organisms are called disinfection. Chlorine is the most widely used disinfectant but ozone and ultraviolet radiation are also frequently used for wastewater effluent disinfection.
Can wastewater be reused?
As wastewater is purified to higher and higher degrees by such advanced treatment processes, the treated effluents can be reused for urban, landscape, and agricultural irrigation, industrial cooling and processing, recreational uses and water recharge, and even indirect augmentation of drinking water supplies .
What is the purpose of Section 313?
The purpose of the EPCRA Section 313 reporting requirement is to inform the public and government officials about routine releases of toxic chemicals to the environment. It will also assist in research and the development of regulations, guidelines, and standards. Reports are sent to EPA and designated state agencies.
What is trichloroethylene used for?
Using trichloroethylene to degrease parts. Process - in general, is the incorporation of a toxic chemical into a product and includes making mixtures, repackaging, or using a chemical as a feed-stock, raw material, or starting material for making another chemical. Examples of processing include:
What is process in chemical?
Process - in general, is the incorporation of a toxic chemical into a product and includes making mixtures, repackaging, or using a chemical as a feed-stock, raw material, or starting material for making another chemical. Examples of processing include:
What are some examples of processing?
Examples of processing include: Adding a solvent as a diluent when making a paint, coating, or other mixture that will be sold as a product. Using a chemical as reactant in the manufacture of a pesticide (e.g., using chemical A to make chemical B).
What does "manufacture" mean?
Manufacture - means to produce, prepare, import, or compound one of the toxic chemicals on the list. For example, if you make a dye for clothing by taking raw materials and reacting them, you are manufacturing the dye.
What is section 313?
Under section 313, facilities are required to report releases and other waste management of specifically listed chemicals. They also are required to re- port transfers of EPCRA section 313 chemicals for waste management to off-site locations.
How many hours are considered full time employees?
A "full-time employee" for the purpose of section 313 reporting, is defined as 2,000 hours per year. In other words, if the total number of hours worked by all employees (i.e., federal and contractor) is 20,000 hours or more, the federal facility meets the "full-time employee" threshold. 34.
What Facilities Are Covered?
What Is A Hazardous Chemical?
- Hazardous chemicals are substances for which a facility must maintain a SDS (MSDS) under the OSHA Hazard Communication Standard, which lists the criteria used to identify a hazardous chemical. SDSs (MSDSs) are detailed information sheets that provide data on health hazards and physical hazards of chemicals along with associated protective measures....
What Are Facilities Required to do?
- Under Section 311 of the Emergency Planning and Community Right-to-Know Act (EPCRA), facilities must submit the SDSs (MSDSs) of hazardous chemicals present on-site at or above the reporting thresho...
How Do I Submit A Tier I Or Tier II Inventory Report?
- Facilities covered by these requirements must submit an emergency and hazardous chemical inventory form to their SERC or TERC, LEPC or TEPC, and the local fire department annually. Facilities provide either a Tier I or Tier II form. Most States require the Tier II form. Tier II forms require basic facility identification information, employee contact information for both emergenc…