Regulations, wastewater

EPA 600 series Methods for Organic Chemical Analysis of Municipal and Industrial Wastewater, regulated under the Clean Water Act. 

Hanmer, R.W. Biological Testing of Complex Effluents in Wastewater Regulation OECD Work and Implementation in the United States, International Conference on River Water Quality - Ecological Assessment and Control, Palias des Congres Bmssels, December 16-18, 1991. 

Under the pressure of progressively more stringent government regulations with regard to permissible levels of residual NH and urea content in wastewaters, the fertilizer industry made an effort to improve wastewater treatment (see also Water, sewage). 

Aqueous work-up of the typical Grignard reaction gives a mixed magnesium hydroxide—haUde solution or suspension which must be disposed of. The cost of disposal of the acidic aqueous waste in accordance with local wastewater treatment regulations must also be considered. 

Changes in fluid compositions include the reduction and removal of zinc from hydrauHc fluids. Zinc-free antiwear hydrauHc fluids, which may be ashless and free of phenol, were developed to meet wastewater treatment regulations for industrial sites by reducing the discharge of heavy metals and phenol into waterways. 

Recent air pollution regulations limit the amount of volatile organic carbon (VOC) that can be discharged from wastewater treatment plants. Benzene is a particular case in which air emission controls are required if the concentration of benzene in the influent wastewater exceeds 10 mg/L. 

The NPDES regulations (40 CFR 122.45) require effluent limits to be expressed as total recoverable metal. This requirement makes sense as a means to monitor and regulate both the total metal loading and also the effectiveness of wastewater treatment that involves chemical precipitation of the metal. 

The part 503 rule applies to biosolids generated from the treatment of domestic wastewater and includes domestic septage. Compliance with the part 503 standards is required within 12 months of publication of the regulation. However, if new pollution control facilities need to be constructed to achieve compliance, then compliance is required by February 19, 1995. Compliance with monitoring. 

ORP Oxidation reduction potential - the degree of completion of a chemical reaction by detecting the ratio of ions in the reduced form to those in the oxidized form as a variation in electrical potential measured by an ORP electrode assembly. OSHA The Williams-Steiger Occupational Safety and Health Act of 1970 (OSHA) is a law designed to protect the health and safety of industrial workers and treatment plant operators. It regulates the design, construction, operation and maintenance of industrial plants and wastewater treatment plants. The Act does not apply directly... 

---