310 CMR, § 71.02
Cartridge Unit means any variety of hollow canisters containing steel wool or fiberglass fibers impregnated with iron filings which are used for silver recovery. These units use metallic replacement to recover silver. They are sometimes called "chemical recovery cartridges", "metallic recovery cartridges" or "canisters".
Class A Recycling Permit means a permit issued pursuant to 310 CMR 30.221: General Provisions.
Container means any portable device in which an industrial wastewater is stored, transported, treated, disposed of, or otherwise handled.
Equivalent POTW Permit means a permit issued by a Publicly Owned Treatment Works (POTW) containing an effluent limit of no more than 2 mg/l for total silver (i.e., two parts per million).
Industrial Wastewater means wastewater resulting from any process of industry, trade or business, regardless of volume or pollutant content. Wastewater which contains only sewage, non-contact cooling water, compressor or air conditioner condensate, including wastewaters from restaurants and school/industry cafeterias is not considered industrial wastewater.
Photo Processor means a facility, as defined in 310 CMR 71.00, that performs the chemical process by which photographic film is treated after photographic exposure to produce a negative or positive image (e.g., processing color prints or slides, or black and white prints or slides). Photo processor does not include a facility that only conducts digital processing of color prints or slides, or black and white prints, or slides.
Photo Processing means the chemical process by which photographic film is treated after photographic exposure to produce a negative or positive image (e.g., color or black and white film, prints, or slides). Photo processing does not include a the digital processing of color or black and white prints, or slides.
Printer means the owner or operator of a facility subject to 310 CMR 7.26(20) through (29) pursuant to 310 CMR 7.26(21): Applicability.
Publicly Owned Treatment Works or POTW means any device or system used in the storage, treatment, recycling, and reclamation of municipal sewage or industrial wastes of a liquid nature which is owned by a public entity. A POTW includes any sewers, pipes, or other conveyances only if they convey wastewater to a POTW providing treatment.
Silver Recovery Unit or System, or Silver Recovery Unit or Unit means equipment or a process that removes silver from solutions such as fixers, bleach fixers, washless stabilizers, and low flow washes.
Small Scale Precipitation Unit means an enclosed pre-assembled unit which uses chemicals to cause the silver to settle to the bottom of the container. The water is then separated from the silver on the bottom and is discharged. The resultant sludge is sent off-site for refining.
Tank means a stationary device used to store or contain an accumulation of industrial wastewater and which is constructed of non-earthen materials (e.g., concrete, steel or plastic) which provide structural support.
310 CMR, § 71.02