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Coal-containing wastewater treatment system and method

A wastewater treatment system and water inlet pipe technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of increased burden, poor adaptability to water quality fluctuations, and electrode plate spacing settings Highly demanding issues, to ensure full occurrence, remove pollutants, and avoid system blockage

Pending Publication Date: 2019-09-13
国能朗新明环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has certain technical advantages in the treatment of heavy metal wastewater, demulsification and oil removal of oily wastewater, decolorization and COD reduction of printing and dyeing wastewater, improvement of biodegradability of refractory organic wastewater, and destabilization and settlement of fine suspended particles. During the operation of the process, the adaptability to water quality fluctuations is relatively poor. The setting of operating current and voltage directly affects the quality of treated water, and the requirements for the spacing of electrode plates are very high, which also increases the burden on operation management.

Method used

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  • Coal-containing wastewater treatment system and method
  • Coal-containing wastewater treatment system and method
  • Coal-containing wastewater treatment system and method

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Embodiment 1

[0044] like Figure 1-Figure 9 A coal-containing wastewater treatment system is shown, including a sedimentation tank, a regulating tank, a mixer, an electric flocculation tank, a clarification tank, a filter, and a reuse tank; a sedimentation tank, a regulating tank, a mixer, a clarification tank, a filter, The reuse pools are connected in turn, the first pump is set between the adjustment pool and the mixer, the second pump is set between the clarification tank and the filter; the mixer is connected to the electroflocculation box; the electroflocculation box is equipped with electrode plates, electrodes The plate is connected to a power source for electrolytic reaction to generate electroflocculation. Set up a separate electrochemical system to carry out the electrolysis reaction of the plate to generate electroflocculation, and then enter the mixer for sufficient flocculation reaction. Avoiding the system blockage caused by the direct flocculation reaction in the electroco...

Embodiment 2

[0052] Adopt the coal-containing wastewater treatment system of embodiment 1 to process coal-containing wastewater, the treatment method comprises the following process steps:

[0053] In the first step, the coal-containing wastewater enters the sedimentation tank through the raw water pump with liquid level control, and settles in the sedimentation tank;

[0054] In the second step, after sedimentation treatment, it enters the regulating tank. The adjustment pool is a homogeneous pool, which is homogeneously regulated in the homogeneous pool;

[0055] The third step is to enter the mixer through the first pump after adjustment. At the same time, the mixer is connected to the electrocoagulation box, and the electrode plates in the electrocoagulation box are connected to the power supply. The electrolytic reaction of the electrode plates produces electroflocculation; the electrocoagulation The electrolyte in the box enters the mixer, and the electroflocculation in the mixer is...

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Abstract

The invention discloses a coal-containing wastewater treatment system, comprising a sedimentation tank, a regulating tank, a mixer, an electric flocculation tank, a clarification tank, a filter and arecycling tank, wherein the sedimentation tank, the regulating tank, the mixer, the clarification tank, the filter and the recycling tank communicate with each other in sequence, wherein a first pumpis arranged between the regulating tank and the mixer; a second pump is arranged between the clarification tank and the filter; the mixer is connected to the electric flocculation tank; and an electrode plate is arranged in the electric flocculation tank and connected to a power source. The invention also provides a coal-containing wastewater treatment method using the coal-containing wastewater treatment system. The invention aims to develop the novel two-stage reaction sedimentation coal-containing wastewater treatment system; and the system changes the conventional route of electrocoagulation treatment, is innovative and completely feasible, has low cost and can open up a new way for coal-containing wastewater treatment.

Description

technical field [0001] The invention relates to the technical field of coal-containing wastewater treatment, in particular to a coal-containing wastewater treatment system and a method thereof. Background technique [0002] The main characteristics of coal-containing wastewater are high turbidity, fine solid particle size, and negative charges on the surface of solid particles. The repulsion between the same-sex charges keeps these particles in a dispersed state in the water, which is affected by gravity and Brownian motion. Due to the interaction between solid particle interfaces in coal slime water (such as adsorption, dissolution, compounding, etc.), the properties of coal washing wastewater are quite complex, not only having the properties of suspensions, but also colloidal properties. [0003] Due to the above reasons, coal washing wastewater is difficult to clarify naturally, and the supernatant of such wastewater after precipitation is still a black liquid with a larg...

Claims

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Application Information

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IPC IPC(8): C02F9/06
CPCC02F9/00C02F2001/007C02F1/463C02F1/001C02F1/38
Inventor 顾小红王飞赵军陈旭蒋正杰
Owner 国能朗新明环保科技有限公司