tailieunhanh - ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - INDUSTRIAL WASTE MANAGEMENT

Các ngành công nghiệp sản xuất khối lượng lớn các chất thải có thể bao gồm nhiều loại hóa chất có chứa hầu hết các chất ô nhiễm độc hại. Nó đã được ước tính rằng có hơn người sử dụng nước nhà máy ở Hoa Khi dân số phát triển, nhu cầu đối với hàng hóa sản xuất cũng sẽ tăng lên. Kết quả là, khối lượng chất thải công nghiệp dự kiến sẽ tăng nhanh hơn so với các chất thải, thành phố trực thuộc Trung ương. Một số các chất thải công nghiệp có thể. | INDUSTRIAL WASTE MANAGEMENT INTRODUCTION Industries produce large volumes of wastes that may include a wide variety of chemicals containing most toxic pollutants. It has been estimated that there are over 300 000 water-using factories in the United As the population grows the need for manufactured goods will also increase. As a result the volume of industrial wastes is expected to grow faster than that of municipal wastes. Some of the industrial wastes can be treated jointly in municipal wastewater treatment plants but others must be pretreated at the source. In recent years industrial wastewater management has undergone vast changes. Under legislative mandates and technological advancement industries are recognizing the need and benefits of using water for several different purposes in descending order of required cleanliness before final treatment and release to the environment. This multiple cascade or sequential reuse of water minimizes the need for new water supplies and reduces and concentrates wastes. A benefit of water and residual reuse may be an economical closed-loop a zero discharge system that requires minimum make-up water to function. Presented here is an overview of industrial pollution control legislation and standards Standard Industrial Classification industrial waste survey and monitoring and wastewater treatment systems for selected industries. INDUSTRIAL POLLUTION CONTROL LEGISLATION AND STANDARDS Water Pollution Control Legislation Although water pollution legislative history in the United States had its beginning with the Refuse Act of 1899 the Federal Water Pollution Control Act Amendments of 1972 PL 92-500 marked the greatest commitment to eliminating pollutants in the nation s lakes rivers and The following is a summary of the last 40 years of water pollution control legislation enacted by the Congress of the Unites States. Federal Water Pollution Control Act of 1948 Federal Water Pollution Control Act of 1956 Federal .