Is sewage station sludge industrial solid waste?

It is industrial solid waste. ? This is because the sewage treatment process belongs to the industrial treatment process, and the sewage sludge is the product of the treatment process. According to the Guidelines for the Declaration and Registration of Solid Waste Discharge, the pollutants generated during the treatment of inorganic wastewater and organic wastewater belong to industrial solid waste. Including the biochemical sludge from the municipal sewage treatment plant, it also belongs to industrial solid waste. ?

Passive storage of industrial waste not only occupies a lot of land, but also wastes manpower and material resources. Many industrial waste residues contain water-soluble substances, which pollute soil and water bodies through leaching. Powdered industrial waste, flying with the wind, pollutes the atmosphere, and some even give off smelly and toxic gases. Some wastes even block rivers, pollute water systems, affect biological growth and endanger human health.

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Industrial waste treatment and utilization?

Industrial wastes can become industrial raw materials or energy sources after proper technological treatment, and it is easier to realize resource utilization than wastewater and waste gas. Some industrial wastes are made into various products, such as cement, concrete aggregate, bricks and tiles, fibers, cast stones and other building materials; Extracting metals such as iron, aluminum, copper, lead and zinc and rare metals such as vanadium, uranium, germanium, molybdenum, scandium and titanium; Manufacturing fertilizers, soil improvers, etc.

In addition, it can also be used for wastewater treatment, mine fire fighting, and as a chemical filler. Almost all industrial wastes can be processed into building materials, or energy and industrial raw materials can be recovered from them.

At present, most countries mainly deal with the industrial sector, that is, under the management of the government, the industrial sectors and factories that emit emissions handle and use them themselves. With the increase of industrial waste discharge, Japan and other countries have developed special contract treatment for final treatment. worker

Influenced by industrial production process and other factors, the composition of industrial waste often changes, which brings difficulties to treatment and utilization. Industrial waste can usually be used after a certain treatment process. For example, the slag formed at high temperature must be cooled, the slag produced by wet method must be dried and dust must be collected, so the cost is high.

Baidu Encyclopedia-Industrial Solid Waste