Waste pond

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A waste pond or chemical pond is a small impounded water body used for the disposal of water pollutants, and sometimes utilized as a method of recycling or decomposing toxic substances. Such waste ponds may be used for regular disposal of pollutant materials or may be used as upset receivers for special pollution events. [1] Often, chemical ponds themselves are addressed for cleanup action after their useful life is over or when a risk of groundwater contamination arises. [2] Peak usage of waste ponds in the United States occurred in the period 1955 to 1985, after which the environmental risks of pond technology were sufficiently understood, [3] such that alternative technologies[ clarification needed ] for waste disposal gradually began to displace many of the waste ponds. Waste ponds often have pond liners, such as concrete or robust synthetic polymeric materials, to prevent infiltration of chemicals to soil or groundwater.

Recycling process using materials into new products to prevent waste of potentially useful materials

Recycling is the process of converting waste materials into new materials and objects. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions. Recycling can prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, thereby reducing: energy usage, air pollution, and water pollution.

Environmental remediation deals with the removal of pollution or contaminants from environmental media such as soil, groundwater, sediment, or surface water. This would mean that once requested by the government or a land remediation authority, immediate action should be taken as this can impact negatively on human health and the environment.

Groundwater water located beneath the ground surface

Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from and eventually flows to the surface naturally; natural discharge often occurs at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology.

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Examples

Piscataway chemical pond

One example of a chemical pond is situated in the woods of Piscataway, New Jersey. It was used by Union Carbide during the active phase of plant operation. Its main use was for drainage of chemicals. Hazardous and exotic chemicals would go down drains in the plant to the pond and later be pumped back to the factory via two large pumps. There it would be distilled to remove acetone and other hazardous chemicals from the mix. This process was overall harmful to the environment and polluted the groundwater. [4]

Piscataway, New Jersey Township in New Jersey

Piscataway is a township in Middlesex County, New Jersey, United States. As of the 2010 United States Census, the township's population was 56,044, reflecting an increase of 5,562 (+11.0%) from the 50,482 counted in the 2000 Census, which had in turn increased by 3,393 (+7.2%) from the 47,089 counted in 1990.

Union Carbide company

Union Carbide Corporation is a wholly owned subsidiary of Dow Chemical Company. It currently employs more than 2,400 people. Union Carbide produces chemicals and polymers that undergo one or more further conversions by customers before reaching consumers. Some are high-volume commodities and others are specialty products meeting the needs of smaller markets. Markets served include paints and coatings, packaging, wire and cable, household products, personal care, pharmaceuticals, automotive, textiles, agriculture, and oil and gas. The company is a former component of the Dow Jones Industrial Average. Union Carbide was 50.9% stakeholder in Union Carbide India Limited, the company responsible for the Bhopal disaster.

Acetone chemical compound

Acetone, or propanone, is the organic compound with the formula (CH3)2CO. It is a colorless, volatile, flammable liquid and is the simplest and smallest ketone.

Oak Ridge waste pond

The United States Oak Ridge National Laboratory operated for more than 50 years, performing research and production at its facility in the Melton Valley area of the Oak Ridge Reservation, in Oak Ridge, Tennessee, before it was decommissioned in the mid 1960s. One of the results of this activity was a waste pond, which was contaminated with radioactive waste including strontium-90, caesium-137; tritium, and transuranics. During the 1970s, the pond was backfilled with clay and shale, and finally capped with asphalt.

Oak Ridge National Laboratory government research facility in Tennessee, United States

Oak Ridge National Laboratory (ORNL) is an American multiprogram science and technology national laboratory sponsored by the U.S. Department of Energy (DOE) and administered, managed, and operated by UT–Battelle as a federally funded research and development center (FFRDC) under a contract with the DOE. ORNL is the largest science and energy national laboratory in the Department of Energy system by size and by annual budget. ORNL is located in Oak Ridge, Tennessee, near Knoxville. ORNL's scientific programs focus on materials, neutron science, energy, high-performance computing, systems biology and national security.

Oak Ridge, Tennessee City in Tennessee, United States

Oak Ridge is a city in Anderson and Roane counties in the eastern part of the U.S. state of Tennessee, about 25 miles (40 km) west of Knoxville. Oak Ridge's population was 29,330 at the 2010 census. It is part of the Knoxville Metropolitan Area. Oak Ridge's nicknames include the Atomic City, the Secret City, the Ridge, and the City Behind the Fence.

Strontium-90 is a radioactive isotope of strontium produced by nuclear fission, with a half-life of 28.8 years. It undergoes β− decay into yttrium-90, with a decay energy of 0.546 MeV. Strontium-90 has applications in medicine and industry and is an isotope of concern in fallout from nuclear weapons and nuclear accidents.

In the mid 1990s, as a temporary solution to concerns that soil and sediments could migrate into nearby streams and, ultimately, reservoirs used for recreation and drinking water supplies, Department of Energy officials installed a cryogenic stabilization system at the waste pond, freezing the soil and groundwater to a depth of approximately 30 feet (9.1 m) around the pond, thereby forming a barrier to groundwater leaching.

Drinking water water safe for consumption

Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation. The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions. Americans, on average, drink one litre of water per day and 95% drink less than three litres per day. For those who work in a hot climate, up to 16 litres a day may be required. Liquid water, along with air pressure, nutrients, and solar energy, is essential for life.

United States Department of Energy Cabinet-level department of the United States government concerned with U.S. policies regarding energy and safety in handling nuclear material

The United States Department of Energy (DOE) is a cabinet-level department of the United States Government concerned with the United States' policies regarding energy and safety in handling nuclear material. Its responsibilities include the nation's nuclear weapons program, nuclear reactor production for the United States Navy, energy conservation, energy-related research, radioactive waste disposal, and domestic energy production. It also directs research in genomics; the Human Genome Project originated in a DOE initiative. DOE sponsors more research in the physical sciences than any other U.S. federal agency, the majority of which is conducted through its system of National Laboratories. The agency is administered by the United States Secretary of Energy, and its headquarters are located in Southwest Washington, D.C., on Independence Avenue in the James V. Forrestal Building, named for James Forrestal, as well as in Germantown, Maryland.

Cryogenics study of the production and behaviour of materials at very low temperatures

In physics, cryogenics is the production and behaviour of materials at very low temperatures. A person who studies elements that have been subjected to extremely cold temperatures is called a cryogenicist.

In February 2004, the cryogenic system was dismantled, replaced with a temporary thermal foam blanket to keep the soil cold, and the pond was excavated. The soil in the areas surrounding the frozen pond contained lower levels of contamination than the pond itself, but enough contamination that it had to be removed. Approximately 10,000 cubic yards (7,600 m3) of soil were removed from the surrounding areas. Another 5,400 cubic yards (4,100 m3) of soil were excavated from the pond itself. [5]

Soil contamination pollution of land by human-made chemicals or other alteration

Soil contamination or soil pollution as part of land degradation is caused by the presence of xenobiotics (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons, solvents, pesticides, lead, and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical substance. The concern over soil contamination stems primarily from health risks, from direct contact with the contaminated soil, vapours from the contaminants, and from secondary contamination of water supplies within and underlying the soil. Mapping of contaminated soil sites and the resulting cleanups are time consuming and expensive tasks, requiring extensive amounts of geology, hydrology, chemistry, computer modeling skills, and GIS in Environmental Contamination, as well as an appreciation of the history of industrial chemistry.

See also

Related Research Articles

Chemical waste waste that is made from harmful chemicals

Chemical waste is a waste that is made from harmful chemicals. Chemical waste may fall under regulations such as COSHH in the United Kingdom, or the Clean Water Act and Resource Conservation and Recovery Act in the United States. In the U.S., the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA), as well as state and local regulations also regulate chemical use and disposal. Chemical waste may or may not be classed as hazardous waste. A chemical hazardous waste is a solid, liquid, or gaseous material that displays either a “Hazardous Characteristic” or is specifically “listed” by name as a hazardous waste. There are four characteristics chemical wastes may have to be considered as hazardous. These are Ignitability, Corrosivity, Reactivity, and Toxicity. This type of hazardous waste must be categorized as to its identity, constituents, and hazards so that it may be safely handled and managed. Chemical waste is a broad term and encompasses many types of materials. Consult the Material Safety Data Sheet (MSDS), Product Data Sheet or Label for a list of constituents. These sources should state whether this chemical waste is a waste that needs special disposal.

Fly ash Residue of coal combustion

Fly ash or flue ash, also known as pulverised fuel ash in the United Kingdom, is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired boilers together with the flue gases. Ash that falls to the bottom of the boiler's combustion chamber (commonly called a firebox) is called bottom ash. In modern coal-fired power plants, fly ash is generally captured by electrostatic precipitators or other particle filtration equipment before the flue gases reach the chimneys. Together with bottom ash removed from the bottom of the boiler, it is known as coal ash. Depending upon the source and composition of the coal being burned, the components of fly ash vary considerably, but all fly ash includes substantial amounts of silicon dioxide (SiO2) (both amorphous and crystalline), aluminium oxide (Al2O3) and calcium oxide (CaO), the main mineral compounds in coal-bearing rock strata.

Remediation of contaminated sites with cement, also called solidification/stabilization with cement is a common method for the safe environmental remediation of contaminated land with cement. The cement solidifies the contaminated soil and prevents pollutants from moving, such as rain causing leaching of pollutants into the groundwater or being carried into streams by rain or snowmelt. Developed in the 1950s, the technology is widely used today to treat industrial hazardous waste and contaminated material at brownfield sites i.e. abandoned or underutilized properties that are not being redeveloped because of fears that they may be contaminated with hazardous waste. S/S provides an economically viable means of treating contaminated sites. This technology treats and contains contaminated soil on site thereby reducing the need for landfills.

Groundwater remediation is the process that is used to treat polluted groundwater by removing the pollutants or converting them into harmless products. Groundwater is water present below the ground surface that saturates the pore space in the subsurface. Globally, between 25 per cent and 40 per cent of the world's drinking water is drawn from boreholes and dug wells. Groundwater is also used by farmers to irrigate crops and by industries to produce everyday goods. Most groundwater is clean, but groundwater can become polluted, or contaminated as a result of human activities or as a result of natural conditions.

Kalamazoo Superfund Site human settlement in Michigan, United States of America

In 1990, the Allied Paper, Inc./Portage Creek/Kalamazoo River in southwestern Michigan was declared by the Environmental Protection Agency (EPA) to be a Superfund site – in other words, an abandoned industrial site containing significant amounts of toxic waste. The EPA and companies responsible for the waste in this area, which includes a three-mile section of Portage Creek as well as part of the Kalamazoo River, into which it flows, are currently involved in an effort to reduce the amount of toxic waste at the site, which is contaminated by PCBs from paper mills and other factories.

Omega Chemical Corporation

The Omega Chemical Corporation was a refrigerant and solvent recycling company that operated from 1976-1991 in Whittier, California. Due to improper waste handling and removal, the soil and groundwater beneath the property became contaminated and the area is now referred to as the Omega Chemical Superfund Site. Cleanup of the site began in 1995 with the removal of hazardous waste receptacles and a multimillion-dollar soil vaporization detoxifying system.

The Del Amo Superfund Site is a U.S. EPA Region 9 Superfund Site. It is one of 94 Superfund Sites in California as of November 29, 2010.

Escambia Wood

The Escambia Wood Treating Company (ETC) site is located at 3910 Palafox Highway, northeast of the intersection of Fairfield Drive in Pensacola, Florida, and is in a mixed industrial, commercial, and residential area (2)(4). The site includes the 26-acre property of the former wood preserving facility and over 60 acres of nearby neighborhoods (1)(4). The facility was in operation from 1942 until 1982, then abandoned by the owner in 1991 (4). During its operation, ETC treated utility poles, foundation pilings, and lumber with creosote and pentachlorophenol (6). Production byproducts were dumped into onsite, unlined containment pits where they seeped into the surrounding soil and groundwater (6).

The Oakdale Dump is an Environmental Protection Agency Superfund site located in Oakdale, Minnesota, and comprises three non-contiguous properties that were used for dumping from the late 1940s until the 1950s by the 3M corporation. The properties are named the Abresch, Brockman, and Eberle sites for their respective property owners at the time of disposal activities. The Abresch site is the largest of the three properties at about 55 acres. The Brockman site is located immediately southwest of the Abresch site and encompasses 5 acres. The Eberle site is located roughly 2,500 feet north of the Abresch site and encompasses 2 acres.

The Freeway Sanitary Landfill is an EPA Superfund site that covers 140 acres (57 ha) in Burnsville, Minnesota. In 1971 the Minnesota Pollution Control Agency (MCPA) licensed the landfill to accept 1,920 acre feet (2,370,000 m3) of household, commercial, demolition, and nonhazardous industrial wastes. The state permit prohibited the disposal of liquids and hazardous wastes; however, heavy metals, acids, and bases were accepted by the landfill from local industries. The landfill also accepted 200 cubic yards (150 m3) of battery casings and 448 short tons (406,000 kg) of aluminum sweat furnace slag. Overall, the landfill contains nearly 5,000,000 cubic yards (3,800,000 m3) of waste. The waste is covered by a low permeability soil cover.

Halaco Engineering Co.

Halaco Engineering Co. operated a scrap metal recycling facility at 6200 Perkins Road, Oxnard, Ventura County, California from 1965 to 2004. The state placed the facility on the California Hazardous Waste Priority List in 2007. The facility includes a smelter area west and the Waste Management Unit (WMU) east of the Oxnard Industrial Drain (OID). Attention was brought to the Halaco site through illegal waste disposal without permits. Further investigation yielded a discovery of harmful contaminants. Remediation of surrounding contaminated areas including the wetlands was completed in 2007. Restoration of the wetlands and management of the WMU are ongoing.

The Waste Disposal Inc. Superfund site

The Waste Disposal Inc. Superfund site is an oil-related contaminated site in the highly industrialized city of Santa Fe Springs in Los Angeles County, California. It is approximately 38 acres (15 ha), with St Paul's high school immediately adjacent to the northeast corner of the site. Approximately 15,000 residents of Santa Fe Springs obtain drinking water from wells within three miles (4.8 km) of the site.

Water in Arkansas is an important issue encompassing the conservation, protection, management, distribution and use of the water resource in the state. Arkansas contains a mixture of groundwater and surface water, with a variety of state and federal agencies responsible for the regulation of the water resource. In accordance with agency rules, state, and federal law, the state's water treatment facilities utilize engineering, chemistry, science and technology to treat raw water from the environment to potable water standards and distribute it through water mains to homes, farms, business and industrial customers. Following use, wastewater is collected in collection and conveyance systems, decentralized sewer systems or septic tanks and treated in accordance with regulations at publicly owned treatment works (POTWs) before being discharged to the environment.

The A.O. Polymer manufacturing site is located in Sparta Township, New Jersey. This facility created special polymers, plastics, and resins. It was also used for reclaiming spent solvents. The facility’s poor waste handling led to serious contamination of the ground. It also contaminated the water in the ground with volatile organic compounds. The site has been a threat to the Allentown aquifer, which provides drinking water to over 5,000 people. Initial clean ups started with getting rid of old drums and contaminants from their original disposal area. The company took them and decided to dispose of them elsewhere, thus not fixing the problem. Primary cleanups of the site were ongoing as of 2008. The EPA has been using water pumps to remove contaminants from the water in the ground. A soil extraction system has been put at their disposal to remove harmful contamination within the soil as well. All wells in the affected areas have been closed.

Emmell's Septic Landfill (ESL) is located at 128 Zurich Ave, Galloway Township, New Jersey and takes up about 38 acres of space. The landfill was in operation from 1967 until 1979. ESL disposed of liquid and solid waste including many chemicals such as volatile organic compounds (VOCs), Polychlorinated Biphenyls (PCBs), Trichloroethene and Vinyl chloride which all had their own effect on the environment and community. These chemicals affected the groundwater required millions of dollars to reconstruct the groundwater pathways and provide clean water to residents. The landfill holds a Hazardous Ranking Score of a 50/100, qualifying for the Superfund National Priority List. In August 1999, the state acknowledged the site's contamination and held town meetings and provided research upon the site such as groundwater samples. In July 1997, a sitewide investigation was called upon by the United States Environmental Protection Agency. In total the clean up was estimated to cost $5 million to fund this superfund site, and a grant of $3.9 million was given by the Federal Government under the Recovery Act Funding (Previti). Today, the project is still ongoing however, greatly improved since the landfill was discovered.

Brook Industrial Park (BIP) is an industrial area occupying 4.5 acres of the Borough of Bound Brook, New Jersey, in the United States of America. It is located on the northern bank of the Raritan River. Industrial, chemical and pesticide operations began in 1971 and eventually lead to the contamination of groundwater and exposure of workers to harmful dioxins. Throughout 1980 to 1988 the United States Environmental Protection Agency (EPA) and the New Jersey Department of Environmental Protection (NJDEP) conducted studies to determine if there were any threats being posed on the workers, community or environment by the BIP companies in their disposal of processed and stored chemicals.

The Zschiegner Refining Company (ZRC) was located in Howell, New Jersey, and operated as a metal refining facility. Some of their operations included stripping the chemicals off of precious metals from watch bands, photographic film, and electrical components. In 1992, the United States Environmental Protection Agency (EPA) discovered that 3,000 chemicals had contaminated the soil, surface water, and groundwater. These areas were contaminated due to discharge of waste to the ground surface, the movement of waste and contamination downhill from the site building, along with surface water runoff. When the EPA investigated the site and found the chemicals in the groundwater and soil, they shut down the company that same year in 1992. In that area, the environment and people were affected, especially the workers in the facility. After a Hazard Ranking System report was conducted by the EPA, the site was placed on the National Priorities List in March 1998. In 2008, the cleanup was completed, but groundwater and wetland is still being monitored.

The White Chemical Corporation Superfund site is 4.4 acres of contaminated industrial land in downtown Newark, New Jersey, about a half mile away from Newark Airport. The Newark site operated from 1983 to July 1990, selling small amounts of chemicals. Some of the chemicals sold there were Trichloroethylene and 1-2-Dichloroethane. These chemicals were being improperly stored and leaked into the soil and groundwater. The EPA placed the property on the National Priorities List (NPL) in 1991, declaring it a Superfund site.

References

  1. ↑ "U.S. Nuclear Regulatory Commission details of handling certain upset events".
  2. ↑ "Idaho National Laboratory: U.S. Department of Energy, EPA ID# ID4890008952".
  3. ↑ David Crimp, Leda Patmore et al., Environmental Assessment of Kaiser Refractories Waste Pond, Moss Landing, California, Earth Metrics Inc., Santa Cruz County, California and the State of California Environmental Clearinghouse (1976)
  4. ↑ "Google Maps". Google Maps.
  5. ↑ Gwenyth Laird Pernie, Crew Takes on Chemical Pond, Construction Equipment Guide (2005)


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