Method for treatment of wool washing waste water

A treatment method, wool washing technology, applied in centrifugal separation water/sewage treatment, osmosis/dialysis water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of large sulfuric acid consumption, complicated equipment, troublesome maintenance, etc. , to achieve the effects of reducing emissions, reducing water consumption, and facilitating recycling
CN1907879AInactive Publication Date: 2007-02-07HANGZHOU WATER TREATMENT TECH DEV CENT +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU WATER TREATMENT TECH DEV CENT
Publication Date
2007-02-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a wool wastewater treatment method. The method comprises: 1) settling, 2) ultrafiltering to obtain the through liquid and condensed liquid, 3) treating the through liquid by reverse osmosis, treating the condensed liquid by recovery of lanolin, and 4) recycling the through liquid and condensed liquid from reverse osmosis respectively. The invention simplifies the wastewater treatment process and ways to avoid the problems of conventional approaches like longer process, not obvious effects, and secondary pollution caused by various chemicals and additives. The remarkable is that the water after every level of treatment process can be reused, which is conducive to recovery of lanolin and make full use of the treated water in the wool washing process, therefore achieving water recycling.
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Description

technical field

[0001] The invention relates to a treatment method for wool washing wastewater. Background technique

[0002] Wool washing wastewater is high-concentration organic wastewater produced in the wool washing process. The composition is very complex. The main components of lanolin and other pollutants are in a suspended state due to saponification and emulsification, which is highly turbid. The water also contains Brucella, E. coli, carbon Bacteria that are pathogenic to humans. The lanolin content of wool washing wastewater is 5-20g / L, and the COD value is generally 4×10 4 ~6×10 4 Between mg / L, up to 10×10 4 mg / L. If this waste water is directly discharged into the water body, it will cause serious pollution to the environment, and lanolin in the waste water is still a kind of industrial raw material with high added value.

[0003] The treatment methods of wool washing wastewater are reported: air flotation-contact oxidation-air f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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