Physico-chemical technology of highly toxic cyanide industrial wastewater treatment research - industrial waste water - water industries

Physico-chemical technology of highly toxic cyanide industrial wastewater treatment research - industrial waste water - water industries

Abstract: The physico-chemical treatment technology in the field of handling hazardous cyanide waste disposal industry Sewage Application ; ; managers and engineering examples, clearly the physical and chemical techniques?? Chlorine oxidation of the features and advantages. Introduced the current foreign hazardous waste disposal in the area of the characteristics of cyanide treatment, and compared our present situation in the field, proving that chlorine oxidation is the most appropriate technical condition of our country. Physico-chemical technology treatment of industrial wastewater containing cyanide on Energy Saving, environmental protection is of great significance, prospects of the physico-chemical treatment of sewage containing cyanide technology research and popularization of the technology in the field of hazardous waste disposal far-reaching impact.

Keywords: energy conservation cyanide effluent chlorine oxidation Embodied

I. Introduction As China's rapid economic development, industrial production technology continue to enhance the industrial hazardous waste output increased rapidly, variety and complexity, and the number of widely distributed generation source. According to "National Hazardous Waste List" in the industrial production of cyanide produced in the process of sewage is harmful to the human environment and human health is one of important sources, such as the effective disposal of non-random emissions, not only on the water environment, air environment and the serious impact on soil environment and destruction, but also the safety and health of the person poses a direct threat. Therefore, the in-depth study of highly toxic cyanide waste water treatment technology has become essential. Physical and chemical techniques?? Chlorine oxidation as a method of cyanide waste water disposal, hazardous waste disposal areas in China have broad applicability.

Second, analysis of physical and chemical technology

1, an overview of industrial sludge containing cyanide

Cyanide refers to the molecule containing cyano [-C N] of the substance, according to the elements or to connect with cyano groups are organic or inorganic cyanide can be divided into two categories, namely organic cyanide and inorganic cyanide, former known as nitrile, which is often referred to as cyanide and inorganic cyanide is widely used, more varieties.

Cyanide cyanide waste water mainly contains mineral components, are highly toxic substances, a small amount of cyanide will be people, animals in a very short period of time poisoning deaths, including cyanide concentration is very low (

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