Waste treatment sites

The Ecolotree buffer uses phytoremediation, or plant processes, for environmental remediation purposes. Ecolotree buffers can be used to reduce the migration of subsurface water and surface runoff, while also acting as an in situ remediation technique for both organic and heavy-metal contaminants, including benzene, toluene, ethylbenzene, and xylene (BTEX) chlorinated solvents ammunition wastes and excess nutrients in soil or water. The technology is commercially available and has been used at landfill and waste treatment sites. 

Di(2-ethylhexyl) adipate was found at levels of 2000 pg/L near a chemical plant source near the Delaware River, north of Philadelphia in 1977 and at levels of 90 and 10 pg/L at sampling sites at influent and effluent waste-treatment sites, respectively (Sheldon Hites, 1979). 

The definitive estimates are prepared after the project has been totally defined, including offsites, waste treatment, site conditions, equipment arrangements, etc. This stage of definition requires the involvement of an engineering contractor to complete the so-called basic engineering referred to in Chapter 12. 

The U.S. Environmental Protection Agency, EPA, maintains the Toxic Chemical Release Inventory. This database summarizes estimated chemical releases from industrial somees to air, water, land, and the subsurface by deep-well injection, and the transfer of materials to waste treatment sites in the U.S. 

Equipment Costs. Equipment costs include the purchased cost of process and materials handling equipment, storage faciUties, waste treatment equipment, stmctures, and site service faciUties. Installation costs such as insulation, piping, painting and finishing, foundations, process stmctures, instmmentation, and electrical service connections are estimated or factored separately. Actual quoted prices from suppHers are the best data, but these are not usually available when estimates are made. The quick, inexpensive cost estimates are based largely on personal cost files, internal company cost data, or pubUshed cost correlations. 

ElectrolyticaHy generated hypochlorite may be used for the oxidative destmction of cyanides (qv) or the sterilization of domestic wastes. Several on-site systems for swimming pool sterilization and municipal waste treatment works have been developed. One of these systems is described in Reference 124. On-site production and immediate use of chlorine is considered safer than the transportation of chlorine. 

As indicated above, industrial wastewater contains avast array of pollutants in soluble, colloidal, and particulate forms, both inorganic and organic. In addition, the required effluent standards are also diverse, varying with the industrial and pohutant class. Consequently, there can be no standard design for industrial water-pohution control. Rather, each site requires a customized design to achieve optimum performance. However, each of the many proven processes for industrial waste treatment is able to remove more than one type of pollutant and is in general applicable to more than one industry. In the sections that follow, waste-treatment processes are discussed more from the... 

Wastes from waste treatment facilities, off-site waste water treatment plants and the water industry Municipal wastes and similar commercial, industrial and institutional wastes including separately collected fractions Waste from agricultural, horticultural, hunting, fishing and aquaculture primary production, food preparation and processing... 

Wastes from waste treatment facilities, off-site waste water treatment plants and the water industry... 

Major, D.W., and Eitchko, J. (1992) Hazardous Waste Treatment On-site and In Situ, Butterworth-Heinemann, Oxford. 

In Part III, you are to identify the toxic chemical being reported. You must indicate the general uses and activities involving the chemical at your facility. In Part III, you will also enter quantitative data relating to releases of the chemical from the facility to air, water, and land. Quantities of the chemical transferred to off-site locations, identified in Part II, are also reported in this part. Any waste treatment information for onsite treatment of wastestreams containing the toxic chemical are also required to be reported on Part III. An optional section is included in this part that allows you to report waste minimization information associated with the chemical. 

Enter one of the following codes to identify the type of treatment or disposal method used by the off-site location for the chemical being reported. You should use more than one line for a single location when the toxic chemical is subject to different disposal methods the same location code may be used more than once. You may have this information in your copy of EPA Form SO, Item S of the Annual/Biennial Hazardous Waste Treatment, Storage, and Disposal Report (RCRA). Applicable codes for Part III, Section 6(c) are as follows ... 

Contains information on industrial location, storage, and release to air, water, and land of SARA Section 313 chemicals. Data is divided into the following categories facility identification, substance identification, environmental release of chemical, waste treatment, and off-site waste transfer. 

Wastewater Treatment Engineering Bureau of Land Water Quality Last update 03/12/01. Wastewater Treatment Engineering, Technieal Assistance and Pollution Prevention. Waste Treatment Go to the following web site http //janus.state.me.us/dep/blwq/engin.htm. 

At the time of the Site I audit, only two established work zones remained on site an exehision zone eneompassing the waste treatment area and a elean zone eneompassing the remainder of the site. Aeeord-ing to the eontraetor s projeet manager, EPA approved this reduetion in site work zones. As a result of this zone designation, workers exit the exehision zone direetly into a elean zone, removing and disearding PPE in a barrel adjaeent to the operations trailer. 

SECTION TA. ON-SITE WASTE TREATMENT METHODS AND EFFICIENCY... 

OSHA s Hazardous Waste Operations and Emergency Response (HAZWOPER) legislation protects workers who respond to emergencies, such as serious spills, involving hazardous materials. It also covers those employed in cleanup operations at uncontrolled hazardous waste sites and at EPA-licensed waste treatment, storage, and disposal facilities. 

An overview is given of plutonium process chemistry used at the U. S. Department of Energy Hanford, Los Alamos National Laboratory, Rocky Flats, and Savannah River sites, with particular emphasis on solution chemistry involved in recovery, purification, and waste treatment operations. By extrapolating from the present system of processes, this paper also attempts to chart the future direction of plutonium process development and operation. Areas where a better understanding of basic plutonium chemistry will contribute to development of improved processing are indicated. 

Figures are given for annual waste production in the Paris area and its composition is outlined. Many of the Paris area cities joined with Paris to create a solid wastes metropolitan authority for domestic waste treatment (SYCTOM). Three incineration plants bum 75% of the SYCTOM area solid wastes and the energy produced provides 43% of the energy consumed by the Paris urban heating network. Landfill is now expensive. There has been a reduction in the number of sites and French legislation prohibits landfill disposal of untreated solid wastes after 2002. A sorting unit at the landfill site was due to open in 1993 and another unit was planned for one of the incineration plants.

The most important routes of exposure to endosulfan for the general population are ingestion of food and the use of tobacco products with endosulfan residues remaining after treatment. Farmers, pesticide applicators, and individuals living in the vicinity of hazardous waste disposal sites contaminated with endosulfan may receive additional exposure through dermal contact and inhalation. 

The third example is compact cleanup units for waste treatment, mainly in consideration of the numerous radioactive sites, stemming from cold-war military developments [106]. The Hanford, Washington, USA, site with a multitude of seriously contaminated tank wastes is among them. Due to the unknown character of most polluting species, the installation of a central waste-treatment facility is said to be not the best and most inexpensive solution. Rather, small modular units, able to be individually adapted to various separation tasks, which are inserted into the tanks and perform cleanup on site, are seen as the proper solution. 

One technique used in a number of facilities that utilize molten salt for metal surface treatment prior to pickling is to take advantage of the alkaline values generated in the molten salt bath in treating other wastes generated in the plant. When the bath is determined to be spent, it is in many instances manifested, hauled off-site, and land disposed. One technique is to take the solidified spent molten salt (molten salt is sold at ambient temperatures) and circulate acidic wastes generated in the facility over the material prior to entry into the waste treatment system. This in effect neutralizes the acid wastes and eliminates the requirements of manifesting and land disposal. 

CESQGs are not subject to most of the generator requirements applicable to LQGs and SQGs, but they must identify their hazardous waste, comply with storage limit requirements, and ensure waste treatment or disposal in an on-site or off-site... 

The HAZWOPER was developed to protect the health and safety of workers engaged in operations at hazardous waste sites, hazardous waste treatment facilities, and emergency response locations. HAZWOPER covers issues such as training, medical surveillance, and maximum exposure limits. 

Bioremediation offers several advantages over conventional methods of waste treatment such as landfilling or incineration. Bioremediation can be done on site, it is often less expensive, involves minimal site disruption, eliminates waste permanently, eliminates long-term liability, has greater public acceptance with regulatory encouragement, and can be coupled with other physical or chemical treatment methods. 

Off-site landfill is not desirable, because it faces more problems associated with off-site transportation. Other off-site treatment and disposal, such as incineration or other waste treatment methods performed off site, are also not attractive, because they are not the on-site permanent... 

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