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Method for treating and recycling water-jet loom wastewater

A wastewater treatment and water-jet loom technology, which is applied in textile industry wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of low textile wastewater reuse rate and achieve mutual improvement. The effect of contact opportunity and reaction effect is obvious

Inactive Publication Date: 2016-01-13
高嵩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the low recycling rate of textile wastewater and the problem of Cl in the prior art - The accumulated problems, the present invention provides a method for the advanced treatment of water jet loom wastewater, improving the quality of reused water, and increasing the reuse rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] After the water jet loom wastewater is regulated, it is lifted to the reaction tank by the lift pump, and then undergoes coagulation with chemical addition and pressurized dissolved air flotation treatment. The wastewater coagulation dosing is 9.5-10% PAC, and the dosage is 0.3-0.35‰ of the wastewater volume. Air flotation pool. In the air flotation tank, the chemical slurry such as PVA, surfactant and oil in the wastewater are removed, the separated sludge enters the sludge thickening tank, and the remaining part enters the biological tank for treatment. After coagulation reaction + pressurized dissolved air flotation, the effluent COD removal rate is over 75%, the turbidity removal rate is over 85%, Cl - The concentration increases by about 10%. Biological treatment is carried out on the remaining organic matter in the wastewater in the biological tank. After the sedimentation mud water is separated, the sludge enters the sludge concentration tank, the effluent ente...

Embodiment 2

[0028]After the water jet loom wastewater is regulated, it is lifted to the reaction tank by the lift pump, and then undergoes coagulation with chemical addition and pressurized dissolved air flotation treatment. Through the observation and analysis of the field experiment 2.1-2.7 group, when the coagulant Al 2 (SO 4 ) 3 18H 2 When the concentration of O is low (less than 7.5%), its dosage will also increase, which will increase the input of dosing equipment. Not only that, the coagulation reaction effect of wastewater is not ideal, and the removal rate of suspended solids and colloids is not high. When coagulant Al 2 (SO 4 ) 3 18H 2 When the concentration of O is high (greater than 8%), a large dosage will increase the cost of the medicament, and a small dosage is not conducive to the full progress of the reaction, and a good coagulation effect cannot be obtained. The concentration and dosage of PAM vary with Al 2 (SO 4 ) 3 18H 2 The concentration of O varies with...

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Abstract

The invention discloses a method for treating and recycling water-jet loom wastewater. The method comprises: (1) lifting regulated wastewater to a reaction tank to be subjected to the coagulation-air floatation treatment, introducing separated-out sludge into a sludge concentration tank, and introducing the residual sludge into a biological tank for treatment; (2) after biologically treating and precipitating the wastewater, introducing the wastewater and supplementary source water into a horizontal flow precipitating tank, adding chemicals into the horizontal flow precipitating tank to regulate the pH value of the wastewater, coagulating and precipitating the wastewater, and introducing effluent into a clear water tank to disinfect; (3) enabling the disinfected effluent to pass through a mechanical filter, and then carrying out sodium ion exchange on the disinfected effluent; and (4) feeding treated process water to each water-jet loom in a workshop.

Description

technical field [0001] The invention relates to a method for treating and recycling textile wastewater, in particular to a method for treating and recycling wastewater from a water jet loom. Background technique [0002] The textile industry is one of the traditional pillar industries in my country. According to the industry, it is mainly divided into textile industry, printing and dyeing industry, chemical fiber manufacturing industry, garment industry and textile special equipment manufacturing industry. The water jet loom is a kind of machine commonly used in the textile industry. During the working process, a certain amount of clean water is needed for jet driving. The daily water consumption of each loom is 1-2 tons, and the discharged waste water mainly contains grease, Colloids, fine suspended particles, chemical slurry, color, microorganisms, heavy metals and organic matter, etc. Generally, the concentration of COD in wastewater is 150-500mg / l, and its biodegradabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/30
Inventor 高嵩
Owner 高嵩
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