Treating process and equipment for coking chemical industrial sewage containing harmful toxic matters
A technology for chemical industry and treatment process, applied in the field of coking chemical industrial wastewater treatment process and equipment, can solve problems such as difficulty in meeting standards, and achieve the effects of low operating costs, slow rising flow rate, and low cost
Pending Publication Date: 2017-05-10
MAIWANG INT BUSINESS SHANGHAI
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Problems solved by technology
The existing coking chemical industry sewage treatment process has made significant progress in the harmless treatment of sewage, most of which use biological denitrification treatment, but in the actual operation process, there are still defects that are difficult to meet the standards
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Embodiment Construction
[0033] Embodiments of the present invention are further described below in conjunction with the accompanying drawings:
[0034] see figure 2 , the present embodiment consists of oil separation device, air flotation device, anaerobic hydrolysis device 3, integrated biochemical reactor 4, reaction tank 5, coagulation tank 6, flocculation tank 7, sedimentation tank 8, sludge storage tank 9, sewage The mud dehydrator consists of 10. The oil separation device is equipped with a grease separation tank 1, a regulating tank 1-1, and a dirty oil tank 1-2. The outlet of the grease trap 1 is connected to the water inlet of the regulating tank 1-1, and the dirty oil tank 1-2 is discharged through the sewage pump , the water outlet of the regulating tank 1-1 is connected to the water inlet of the air flotation tank 2 of the air flotation device through the lifting pump, the water outlet of the air flotation tank 2 is connected to the water inlet of the anaerobic hydrolysis device 3, and ...
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The invention provides a treating process and equipment for coking chemical industrial sewage containing harmful toxic matters. The process comprises a pretreatment step, a biochemical treatment step, a deep treatment step and a sludge treatment step. The equipment consists of an oil isolating device, an air-floatation device, an anaerobic hydrolysis device, an integrated biochemical reactor, a reaction tank, a coagulating basin, a flocculation basin, a settling pond, a sludge storage pond and a sludge dehydrating machine. The oil isolating device is serially connected with the air-flotation device, the anaerobic hydrolysis device and the integrated biochemical reactor; the biochemical reactor is serially connected with the reaction tank, the coagulating basin, the flocculation basin and the settling pond; the reaction tank is provided with a lime feeding device; the coagulating basin is provided with a coagulant feeding device; and the flocculation basin is provided with a flocculant feeding device. The treating process and equipment for coking chemical industrial sewage containing harmful toxic matters have the advantages that various treatment processes are adopted, the coking chemical industrial sewage containing the harmful toxic matters are treated in a harmless manner, and therefore, the equipment is safe environmentally friendly equipment which is low in cost and low in running costs.
Description
technical field [0001] The invention relates to a sewage treatment process and equipment, in particular to a treatment process and equipment for coking chemical industrial sewage containing toxic substances. Background technique [0002] Coking chemical industry sewage has the characteristics of complex composition, high concentration, high toxicity, etc. The sewage contains a large number of organic pollutants, such as tar, phenol, naphthalene, amine, benzene, pyridine, quinoline, anthracene, indole and other heterocyclic and polycyclic Compounds also contain toxic substances such as cyanide, sulfide, and thiocyanide. If these substances are not properly treated and discharged into the natural water system, or enter the atmosphere through volatilization, they will cause serious harm to the human body, animals and plants. Among them, low-concentration phenol can denature protein, and high-concentration phenol can cause protein precipitation, which has a strong corrosive eff...
Claims
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IPC IPC(8): C02F9/14C02F11/12C02F11/14
Inventor 裘碧英李晓玲黄海耀陈远超易鑫荣
Owner MAIWANG INT BUSINESS SHANGHAI