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Membrane concentrated solution treatment system and production process thereof

A technology of liquid treatment and membrane concentration, which is applied in the direction of sedimentation treatment, water/sewage treatment, process efficiency improvement, etc. It can solve the problems of high cost, affecting the effect of sedimentation treatment, and affecting the formation of large flocs, so as to save resources and solve the problem of The liquid temperature drops and the effect of improving efficiency

Active Publication Date: 2021-06-18
ZHEJIANG HONGDIAN ENVIRONMENTAL PROTECTION & TECH CO LTD
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Problems solved by technology

[0004] The existing coagulation treatment method usually needs to add independently prepared iron salt, which is costly, and the hydrolysis of salt coagulant in the coagulation process is an endothermic reaction, and it is difficult to hydrolyze when the water temperature is low, which affects the formation of flocs. , thus affecting the effect of subsequent precipitation treatment

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  • Membrane concentrated solution treatment system and production process thereof
  • Membrane concentrated solution treatment system and production process thereof
  • Membrane concentrated solution treatment system and production process thereof

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment: see Figure 1-Figure 5 , a membrane concentrate treatment system, including a mixing tank 1 and a stirring shaft 2, the stirring shaft 2 is located in the center of the mixing tank 1, and the stirring shaft 2 is connected to a reducer through a gear.

[0020] Preferably, a lifting device 3 is fixed inside the stirring shaft 2, and both ends of the lifting device 3 are arranged on the outside of the stirring shaft 2, and an electric rotary joint is provided when the cable of the lifting device 3 is connected to an external cable. The swivel joint is a prior art and will not be described here; preferably, the upper end of the lifting device 3 is connected to the feeding device 4, and the lower end of the lifting device 4 is set at the bottom of the mixing tank 1 and rotates with the stirring shaft 2.

[0021] Preferably, the lifting device 4 in...

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Abstract

The invention discloses a membrane concentrated solution treatment system which comprises a mixing tank and a stirring shaft, wherein a lifting device is fixedly arranged in the stirring shaft, the two ends of the lifting device are arranged on the outer side of the stirring shaft, the upper end of the lifting device is connected with a feeding device, a discharging port of the feeding device is connected with a mixing device, the other side of the mixing device is connected with a liquid storage tank; the lower end of the lifting device is arranged at the bottom of the mixing tank and used for extracting metal impurities in the mixing tank; the mixing device is used for mixing the metal impurities with dilute sulphuric acid to react to generate inorganic salts and injecting the inorganic salts into the mixing tank. Through the device, resources can be greatly saved, and the treatment efficiency of the concentrated solution is improved.

Description

technical field [0001] The invention relates to the technical field of waste liquid treatment, in particular to a membrane concentration treatment system and a production process thereof. Background technique [0002] Membrane treatment technology is mainly used for the separation and treatment of sewage and wastewater. After the sewage is treated by membrane, the wastewater is separated into water and waste. The waste is then evaporated to remove the remaining water and finally form solid waste. [0003] In modern production and life, industrial wastewater, especially coolant wastewater generated in the metal processing industry, usually contains a large amount of ferrous metals and organic matter. The waste generated by such wastewater after membrane treatment forms a slurry-like concentrate. Usually, the treatment method of this kind of concentrated solution is coagulation treatment, that is, adding iron salts (ferrous sulfate, ferric sulfate, ferric chloride, etc.) The ...

Claims

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Application Information

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IPC IPC(8): C02F9/12
CPCC02F9/00C02F1/484C02F2001/007Y02P10/20
Inventor 申君辉付梅红王杨帆智俊山
Owner ZHEJIANG HONGDIAN ENVIRONMENTAL PROTECTION & TECH CO LTD
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