A method and device for treating wastewater produced by a waterworks plant
A technology for water works and wastewater production, applied in water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, water treatment parameter control, etc. The effect of saving manpower and material resources and enhancing the corporate image of environmental protection
Active Publication Date: 2018-04-20
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the waterworks basically discharge domestic wastewater directly into nearby rivers and municipal pipe networks. This treatment method not only pollutes the river, but also increases the processing load of the sewage treatment plant.
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
[0029] The wastewater produced by the waterworks in the production process has the characteristics of high turbidity and high solid content. If this part of wastewater is directly discharged into the river, it will not only pollute the river, but also increase the treatment load of the sewage treatment plant. It does not conform to the environmental protection concept of energy saving and emission reduction.
[0030] In this example, this part of the wastewater is treated as the water source of the waterworks, which not only solves the problem of domestic wastewater treatment in the factory area, but also solves the problem of insufficient high-temperature water source in summer.
[0031] Feasibility analysis of this example: Among the wastewater generated by the production and life of the waterworks, the sludge discharge from the sedimentation tank and the backwash wastewater from the filter account for more than 70% of the wastewater from the waterworks. Therefore the way to...
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 treatment method and device for waterworks production wastewater. The method includes: firstly sending the wastewater generated in a waterworks production process into a sludge discharge tank, lifting the wastewater by an underflow pump at the sludge discharge tank end, then sending the wastewater into a concentration tank to undergo gravity concentration continuously to 2000mg / L, then letting the supernatant overflow to a water storage tank, sending the sludge at the bottom of the concentration tank into a balancing tank through the underflow pump, sending the sludge from the balancing tank sludge outlet to a three-compartment stirring tank through an electric flow propeller in the balancing tank, adding a PAM flocculant into the three-compartment stirring tank to improve the dehydration performance of sludge, and at the end of the three-compartment stirring tank, sending the sludge to a centrifugal dehydrator by an axial flow pump, further separating the water in the sludge by the centrifuge and then letting the water enter the water storage tank, and sending the dehydrated sludge into a sludge piling shed by a screw conveyer. The method and the device provided by the invention can reduce discharge of sludge to nearby river channels by 10 tons every month and at the same time recover 7.8 tons of water. The method and the device provided by the invention can realize PLC automatic remote control and improve the environmental protection image of enterprises.
Description
technical field [0001] The invention relates to a treatment method and device for producing waste water in a waterworks, and belongs to the technical field of environmental protection engineering. Background technique [0002] As a livelihood project provided by drinking water, the waterworks are responsible for the safety of the residents’ drinking water. The waterworks also produce wastewater in the process of producing water, mainly including sludge discharge water from sedimentation tanks, backwash water from filters, and kitchen, toilet, Wastewater from residences such as canteens. At present, the waterworks basically discharge domestic wastewater directly into nearby rivers and municipal pipe networks. This treatment method not only pollutes the river, but also increases the treatment load of the sewage treatment plant. Contents of the invention [0003] The object of the present invention is to provide a treatment method and device for the production wastewater of ...
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 Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F11/14C02F11/12
CPCC02F1/52C02F11/127C02F11/14C02F2001/007C02F2209/005
Inventor 张奎
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD