Comprehensive treatment device for coating wastewater and domestic sewage
A paint wastewater and domestic sewage technology, applied in water/sewage treatment, biological water/sewage treatment, flotation water/sewage treatment, etc., can solve the problems of difficult paint wastewater treatment, complex wastewater quality, and high concentration of organic matter, and achieve improvement Biodegradable, flexible operation mode, high activity effect
Inactive Publication Date: 2019-03-05
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF2 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, physical and chemical treatment is the most widely used method. Although this method can reduce the cost of wastewater treatment, and the pollution caused by wastewater from paint companies will not cause much impact in a short period of time, with the continuous increase of wastewater and the increase in the variety of paint products, wastewater The water quality is becoming more and more complex, the concentration of organic matter is high, and the pollution will become more and more serious, making it difficult to treat paint wastewater
However, due to the small amount of domestic sewage, some paint companies will choose to discharge it directly, resulting in environmental pollution.
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
[0013] Such as figure 1 As shown, a comprehensive treatment device for paint wastewater and domestic sewage, including a water inlet pump 1 (11), a sump 3, a coagulation sedimentation tank 4, an air pump 5, a pressure vessel tank 6, and an air flotation tank 10 connected in sequence through pipelines , regulating tank 12, UASB15, SBR18, microporous aeration head 19, compressed air 20, intermediate pool 21, activated carbon filter tank 22, sludge thickening tank 23 (26), plate and frame filter press 25 (28). The paint wastewater enters the sump 3 under the action of the water inlet pump 1, and then enters the air flotation tank 10 after being settled in the coagulation sedimentation tank 4 to remove a...
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
Login to View More PUM
Login to View More Abstract
The invention discloses a comprehensive treatment device for coating wastewater and domestic sewage, and the comprehensive treatment device comprises a preprocessing stage, a biological treatment stage, a filtration stage and a sludge treatment stage. The preprocessing stage comprises a water collecting tank, a coagulating sedimentation tank, an air floatation tank and a regulating pool, wherein the biological treatment stage comprises an UASB (upflow anaerobic sludge blanket) and a SBR (sequencing batch reactor); the filter stage is an activated carbon filtering tank; and the sludge treatmentstage comprises a sludge concentration tank, a sludge pump and a plate-frame filter press. By adopting the comprehensive treatment device for the coating wastewater and the domestic sewage, after thecoating wastewater is subjected to the pretreatment stage, the wastewater and the domestic sewage enter the biological treatment stage to be treated, the treated wastewater can be discharged or recycled, environmental pollution is reduced, and water resources are effectively saved.
Description
technical field [0001] The invention relates to a comprehensive treatment device for paint wastewater and domestic sewage, in particular to a comprehensive treatment device for paint wastewater and domestic sewage invented by the integration technology of multi-stage pretreatment and biological system. Background technique [0002] Due to the rapid development of the production and use of coatings, a large amount of coating wastewater has been produced. Paint wastewater is one of the wastewater with high organic matter, high turbidity, and high chroma, which mainly comes from the flushing of reaction kettles and batching tanks, the cleaning of the ground, and the wastewater generated by the R&D department. Paint wastewater contains various chemical raw materials such as resins, organic solvents, and additives, as well as high-molecular organic compounds such as thickeners and dispersants. The organic matter seriously exceeds the standard, and the biodegradability is very poo...
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
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C02F9/14C02F11/12C02F11/122C02F103/14
CPCC02F9/00C02F11/122C02F1/24C02F1/283C02F1/5281C02F3/1263C02F3/2846C02F2103/14
Inventor 杨宗政杨婷婷张洁郭亚男刘爱霖王春虎
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY