Glass fiber wastewater reusing and processing method and system

A treatment method and a treatment system technology, which are applied in the field of glass fiber wastewater reuse treatment methods and systems, can solve the problems of high frequency of membrane cleaning and low water production rate, and achieve the effect of protection from pollution and efficient reuse

Pending Publication Date: 2019-06-07
CISDI ENG CO LTD
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Problems solved by technology

[0004] At present, membrane technology has been more and more widely used in the field of industrial wastewater recycling, but there have always been problems such as high membrane cleaning frequency and lo

Method used

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  • Glass fiber wastewater reusing and processing method and system

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Embodiment 1

[0085] use as figure 1 In the treatment system shown, the wastewater from the glass fiber factory is lifted into the regulating tank, and the water quality and quantity are balanced in the regulating tank. (The hydraulic retention time of the regulating tank is 8h, the designed effluent COD: 5000mg / L, chromaticity 600 times) flows into the primary flocculation reaction Pool, add polyaluminum chloride 500mg / L, PAM (polyacrylamide) 5mg / L in the primary flocculation reaction tank, the hydraulic retention time of the flocculation reaction is 16min, after the flocculation reaction, advection sedimentation tank, advection sedimentation tank The surface load is taken as 0.85m 3 / m 2 h, the mud-water separation is carried out in the sedimentation tank, and the clean water enters the aerobic biological treatment system; the aerobic biological treatment system is equipped with soft fillers, a liftable aerator is used, the reaction gas-water ratio is 10:1, and the hydraulic retention ti...

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Abstract

The invention provides a glass fiber wastewater reusing and processing method and system. The method comprises following steps: subjecting wastewater to primary flocculation and sedimentation; processing wastewater by an aerobic biological treatment system; subjecting wastewater to secondary flocculation and sedimentation; oxidizing wastewater by ozone; aerating wastewater in a bio-filter; filtering wastewater; adsorbing wastewater; and carrying out ultrafiltration and reverse osmosis. The aerobic biological treatment system is adopted, and an active sludge method and a bio-film method are integrated to efficiently remove COD in wastewater. The carbon and color of wastewater are efficiently removed by an ozone oxidation technology; the salt content of wastewater is not increased; through adsorption and ultrafiltration, the quality of water introduced to a reverse osmosis membrane can be guaranteed, thus the reverse osmosis membrane will not be polluted, and the reusing of the glass fiber wastewater is realized efficiently.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a glass fiber wastewater reuse treatment method and system. Background technique [0002] Glass fiber wastewater is wastewater generated during the glass fiber production process, mainly including flushing water wastewater containing sizing agent discharged during the drawing process, flushing water containing binder in the felting process, and a small amount of resin-containing wastewater discharged from FRP production. And suspended solids such as fine glass fibers, among which sizing agent wastewater is the main pollution source of glass fiber industrial wastewater. The main components of the wetting agent are epoxy emulsion, polyurethane lactic acid, lubricants and antistatic agents, various coupling agents, etc., except for solvents, most of them are high-molecular organic substances with high thermal stability and insoluble in water. Due to the uniqueness of t...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 陈青松邱利祥姜剑赵二华
Owner CISDI ENG CO LTD
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