01:44
Chemical Treatment Technologies: Water Treatment
The control of pH is critical in the treatment of both wastewater and drinking water. Through the Clean Water Act of 1972, the Environmental Protection Agency established standards for water quality and limits for the toxicity of effluents from ind...
01:41
Physical Treatment Technologies: Waste and Emissions Standards
In the past, when the waste load was light, nature's ways of purifying itself were sufficient. However, the amount of waste generated by contemporary society has overburdened these restorative powers. As a result, regulations now control the quant...
02:13
Chemical Treatment Technologies: Benign by Design, Biomonitoring, and Enforcement
The future of chemical treatment technology is striving to attain the reduction of waste at its source, and seeking to improve the monitoring of that which is discharged.