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Stone processing sewage treatment method

A sewage treatment method and stone processing technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of limited adsorption capacity of sewage treatment agents and poor removal effect of heavy metal ions, etc. problem, to achieve the effect of improving the adsorption capacity and the removal rate of heavy metal ions

Inactive Publication Date: 2019-04-09
长沙如洋环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention effectively reduces the content of COD, BOD, SS and metal ions; the treatment method is simple, the dosage is small, the treatment effect is good, the performance is stable, the effluent water quality is good, and the cost of water treatment can be effectively reduced. The sewage treatment provided by the invention The adsorption capacity of the solvent is limited, and the removal effect of heavy metal ions is not good

Method used

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  • Stone processing sewage treatment method
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preparation example Construction

[0022]The preparation method of the modified ceramic particles is as follows: (1) adding the original soil of the ceramic particles into a rotary kiln, firing for 30-60 minutes at a temperature of 1500° C., and crushing them into particles with a particle size of 100-200 μm after exiting the kiln. Fine ceramic particle powder; (2) take the fine ceramic particle powder obtained in step (1) and carry out vacuum drying treatment for 12 hours, and then soak in aluminum sulfate, potassium hypochlorite and sodium lignosulfonate for 2-4 hours to make the fine ceramic particle powder After being fully soaked, filtered and dried at low temperature; (3) taking the ceramic particle fine powder after low-temperature drying obtained in step (2) and adding it to the polymerization kettle, and then adding polyvinyl alcohol, polyethylene glycol, and ammonium persulfate successively , methanol, aluminum oxide, methyl methacrylate, the reaction temperature is 78-82° C., and the reaction time is ...

Embodiment 1

[0025] A stone processing wastewater treatment method, comprising: the sewage generated in the stone processing process first flows into a sedimentation tank, and a coagulant is added to the sewage in the sedimentation tank to accelerate the settlement of suspended solids in the stone sewage and increase the colloid and suspended solids in the sewage The suspended matter in the sewage forms stone mud at the bottom of the sedimentation tank, and the upper layer of clear water is filtered and overflows into the secondary sedimentation tank for secondary sedimentation. The bottom of the secondary sedimentation tank continues to form stone mud, and the upper layer is clear water. The upper clear water in the secondary sedimentation tank overflows to the clear water tank after being filtered, and the clear water in the clear water tank is reused. The stone mud at the bottom of the sedimentation tank and the secondary sedimentation tank is extracted through the pipeline and then treat...

Embodiment 2

[0029] A stone processing wastewater treatment method, comprising: the sewage generated in the stone processing process first flows into a sedimentation tank, and a coagulant is added to the sewage in the sedimentation tank to accelerate the settlement of suspended solids in the stone sewage and increase the colloid and suspended solids in the sewage The suspended matter in the sewage forms stone mud at the bottom of the sedimentation tank, and the upper layer of clear water is filtered and overflows into the secondary sedimentation tank for secondary sedimentation. The bottom of the secondary sedimentation tank continues to form stone mud, and the upper layer is clear water. The upper clear water in the secondary sedimentation tank overflows to the clear water tank after being filtered, and the clear water in the clear water tank is reused. The stone mud at the bottom of the sedimentation tank and the secondary sedimentation tank is extracted through the pipeline and then treat...

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Abstract

The invention discloses a stone processing sewage treatment method which comprises the following steps: sewage generated in a stone processing course flows into a settling pond first; a coagulant is added into the sewage of the settling pond; suspended solids in the sewage form stone mud in the bottom layer of the settling pond ; upper rinsed water is filtered and overflowed to a secondary settling pond for secondary settlement; stone mud is continuously formed in the bottom layer of the secondary settling pond, wherein the upper layer is rinsed water; and the upper rinsed water in the secondary settling pond is filtered and overflowed to a rinsed water pond. The coagulant is prepared from modified ceramic particles, humus, bamboo charcoal, rhamnolipid, lauryl sodium sulfate, cationic starch, lactic acid and alkyl cyanoacrylate. By taking cationic starch, lactic acid and alkyl cyanoacrylate as a reinforcing system, the adsorption ability and the heavy metal ion removal rate of the coagulant by the stone processing sewage treatment method are improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a stone processing sewage treatment method. Background technique [0002] Stone processing is currently the non-metallic mining industry with the largest output value, which produces stone wastewater. Different from conventional mineral powder wastewater, stone wastewater contains stone powder, some petroleum hydrocarbons, a large amount of surface dispersants, and a small amount of inorganic salt additives such as ammonium chloride and sodium nitrite, and its properties are similar to flotation wastewater. Due to the high COD content of the wastewater, the natural precipitation products are very dense, and direct discharge often causes the death of aquatic organisms and the compaction of soil coverage, causing serious environmental damage. At present, there are various methods such as physical, chemical, and biological to deal with the pollution of sewage treatment age...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F1/28C02F11/122C02F101/20
CPCC02F1/281C02F1/283C02F1/285C02F1/286C02F1/5236C02F1/5263C02F1/54C02F1/56C02F11/122C02F2001/007C02F2101/20
Inventor 不公告发明人
Owner 长沙如洋环保科技有限公司
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