A treatment device for jade processing wastewater

Abstract

The invention relates to a treatment device of processing wastewater of jade. The treatment device comprises a mechanical grid collecting tank, and an automatic oil separator communicated with the mechanical grid collecting tank and used for oil removal, wherein the automatic oil separator is communicated with a spiral-flow filter membrane purification can and an integral bioreactor; the spiral-flow filter membrane purification can and the integral bioreactor are communicated with a sludge tank; the sludge tank is connected with a sludge dewatering device; and a discharge pipeline is arranged at the tail end of the integral bioreactor. The treatment device has the excellent effects that an oil and water separation rate is increased, and an oil removal rate is greater than 90% by an air floatation mode via an air floatation oil separation tank; with the adoption of a pipeline coagulation technology, removal of heavy metals and decoloration are realized, a removal rate of the heavy metals is greater than 90%, and a decoloration rate is greater than 98%; matter-liquid separation is realized by a spiral-flow filter membrane purification can, a removal rate of solid suspended matters is greater than 99%, and an improvement rate of turbidity is greater than 98%; and with the adoption of the integral bioreactor, COD (Chemical Oxygen Demand), ammonia nitrogen and total phosphorus in the processing and production wastewater of the jade reach level I of the national rural drainage standard.

Description

technical field [0001] The invention belongs to the field of water pollution control of environmental engineering, in particular to a treatment device for stone processing wastewater based on physical degreasing technology, chemical decolorization technology, chemical heavy metal removal technology, physical and chemical technology and MBR technology, and in particular to a treatment of jade processing wastewater device. Background technique [0002] In recent years, with the rising price of jade, more and more various jade processing enterprises have been established, and the output of jade has also increased significantly. A large amount of wastewater will be generated in each link, and the wastewater generated in each link will be combined together, with deep color, high acidity, high content of suspended solids and organic matter. Although the amount of wastewater discharged by a single enterprise every day is not too large, the total amount of wastewater discharged by ...

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Problems solved by technology

The device adjusts the pH + primary precipitation + secondary precipitation, and cannot treat the heavy metals in the wastewater, and cannot meet the discharge standard

[0006] The Chinese patent with the publication number CN103523953A discloses a method for treating wastewater from stone industry processing. The method includes: adding lime powder to the wastewater to adjust the pH to 10-11, stirring thoroughly for 1 minute, then adding brine and PAM, and continuing to stir , and then take the supernatant; this method can be summarized as: adjustment + demulsification + coagulation, and it is also unable to treat heavy metals and chroma in wastewater. Although it has the effect of improving wastewater, it has defects such as simple equipment and imperfect technology. Unable to meet wastewater treatment discharge standards, poor practicability

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