1,1-Dichloroethane

CAS RN:75-34-3

Disposal Methods

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number U076, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste.
Product: Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material; Contaminated packaging: Dispose of as unused product.
Potential candidate for liquid injection incineration, with a temperature range of 650 to 1,600 deg C and a residence time of 0.1 to 2 seconds. Also a potential candidate for rotary kiln incineration, with a temperature range of 820 to 1600 deg C and a residence time of seconds. Also a potential candidate for fluidized bed incineration, with a temperature range of 450 to 980 deg C and a residence time of seconds.
The following wastewater treatment technologies have been investigated for 1,1-dichloroethane: Concentration process: Stripping.
The following wastewater treatment technologies have been investigated for 1,1-dichloroethane: Concentration process: Solvent extraction.
The following wastewater treatment technologies have been investigated for 1,1-dichloroethane: Concentration process: Activated carbon.
The following wastewater treatment technologies have been investigated for 1,1-dichloroethane: Concentration process: Resin adsorption.
Environment Canada's Wastewater Technology Center operated a pilot plant at a landfill site to treat groundwater contaminated with volatile organic chemicals during the summer of 1986. The treatment system consisted of a packed air stripping column to treat the wastewater and two sequential granular activated carbon adsorbers to treat the off-gases. Among volatile organic chemicals in the wastewater were 1,1-dichloroethane, 1,2-dichloroethane, chloroform, 1,1-dichloroethylene, 1,1,1-trichloroethane, benzene, toluene, and trichloroethylene. Removal efficiencies varied from 27 to 99.9%. Optimal conditions, resulting in 94% removal of all volatile organic chemicals, were met with a 70:1 air-to-water ratio, a liquid flow rate of 4 L/min, and 1.3 cm ... saddles. Concentration of all compounds were below the lower detection limit of 2 ug/L in the effluent of the second granular activated charcoal absorber.
SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal. If it is not practicable to manage the chemical in this fashion, it must be evaluated in accordance with EPA 40 CFR Part 261, specifically Subpart B, in order to determine the appropriate local, state and federal requirements for disposal.
Disposal Method Suggested: Incineration; preferably after mixing with another combustible fuel. Care must be exercised to assure complete combustion to prevent the formation of phosgene. An acid scrubber is necessary to remove the halo acids produced. ... Generators of waste containing this contaminant (greater than or equal to 100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed