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Process for deep treatment on organic wastewater by using multielement microelectrolysis packing

A technology for organic wastewater and advanced treatment, which is applied in water/sewage multi-stage treatment, filtration treatment, precipitation treatment, etc., can solve the problems of insufficient contact between fillers and water, general treatment effect, hardening and passivation, etc., and achieves the preparation method. Simple and fast, good processing effect, low cost effect

Active Publication Date: 2017-06-20
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the structured multi-element micro-electrolytic fillers currently on the market have solved engineering problems such as cathode-anode separation, compaction, and passivation that are easy to occur in physical mixed stacks. In fact, the real processing effect is average

Method used

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  • Process for deep treatment on organic wastewater by using multielement microelectrolysis packing
  • Process for deep treatment on organic wastewater by using multielement microelectrolysis packing
  • Process for deep treatment on organic wastewater by using multielement microelectrolysis packing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The process for advanced treatment of organic wastewater by using multiple micro-electrolytic fillers includes the following steps:

[0034] (1) The organic waste water enters the adjustment tank through the secondary sedimentation tank effluent to adjust the pH to acidity;

[0035] (2) After being adjusted to acidity, the organic waste water enters the quicksand filter, and the organic matter in the organic waste water is oxidatively degraded with the sand-like multi-component alloy structure filler as the micro-electrolysis filler; and the suspended matter is filtered out;

[0036] (3) Enter the flocculation tank with the wastewater effluent treated in step (2), and add NaOH solution in the flocculation tank to generate synergistic flocculation;

[0037] (4) The effluent of the treated wastewater in the flocculation tank enters the inclined tube high-efficiency sedimentation tank to remove the sediment and then effluent to complete the advanced treatment of organic wa...

Embodiment 2

[0046] The process for advanced treatment of organic wastewater by using multiple micro-electrolytic fillers includes the following steps:

[0047] (1) The organic waste water enters the adjustment tank through the secondary sedimentation tank effluent to adjust the pH to acidity;

[0048] (2) After being adjusted to acidity, the organic waste water enters the quicksand filter, and the organic matter in the organic waste water is oxidatively degraded with the sand-like multi-component alloy structure filler as the micro-electrolysis filler; and the suspended matter is filtered out;

[0049] (3) Enter the flocculation tank with the wastewater effluent treated in step (2), and add KOH solution in the flocculation tank to generate synergistic flocculation;

[0050] (4) The effluent of the treated wastewater in the flocculation tank enters the inclined tube high-efficiency sedimentation tank to remove the sediment and then effluent to complete the advanced treatment of organic was...

Embodiment 3

[0059] The process for advanced treatment of organic wastewater by using multiple micro-electrolytic fillers includes the following steps:

[0060] (1) The organic waste water enters the adjustment tank through the secondary sedimentation tank effluent to adjust the pH to acidity;

[0061] (2) After being adjusted to acidity, the organic waste water enters the quicksand filter, and the organic matter in the organic waste water is oxidatively degraded with the sand-like multi-component alloy structure filler as the micro-electrolysis filler; and the suspended matter is filtered out;

[0062] (3) Enter the flocculation tank with the wastewater effluent treated in step (2), and add KOH solution in the flocculation tank to generate synergistic flocculation;

[0063] (4) The effluent of the treated wastewater in the flocculation tank enters the inclined tube high-efficiency sedimentation tank to remove the sediment and then effluent to complete the advanced treatment of organic was...

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Abstract

The invention discloses a process for deep treatment on organic wastewater by using multielement microelectrolysis packing. The process comprises the following steps: (1) feeding organic wastewater into an adjusting tank through secondary sedimentation tank effluent, and adjusting the pH value to acidity; (2) after the pH value is adjusted to acidity, feeding organic wastewater into a microelectrolysis reactor, performing oxydative degradation on organic matters in the organic wastewater by using a sand granule shaped multielement alloy framework packing, and filtering off suspended solids; (3) feeding wastewater effluent after treatment into a flocculation basin, adding a strong alkali solution into the flocculation basin, and carrying out a synergistic flocculation function; and (4) feeding wastewater treated in the flocculation basin into an inclined tube sedimentation tank, removing precipitate, and discharging the water, thereby completing deep treatment on organic wastewater. As the sand granule shaped multielement microelectrolysis packing of an alloy framework is adopted as microelectrolysis packing, deep treatment on degradation-resistant organic wastewater is achieved through microelectrolysis reaction with filtration of flowing sand, organic wastewater can be effectively and deeply treated, the effluent can be excellent in quality, and in addition, the process is simple, low in cost and free of pollution of environments.

Description

technical field [0001] The invention relates to organic wastewater treatment, in particular to a process for advanced treatment of organic wastewater by using multiple micro-electrolysis fillers. Background technique [0002] With the development of the economy, a large number of man-made organic substances have appeared in all walks of life. These substances are mostly difficult to biodegrade and toxic and harmful substances. These substances enter the water body with the discharge of sewage and seriously pollute the water environment. Such as printing and dyeing wastewater, pharmaceutical wastewater, electroplating wastewater, coking wastewater and other organic synthetic chemical industrial wastewater, the pollutants in this kind of wastewater mainly include heavy metals, polycyclic aromatic hydrocarbons, nitro compounds, chlorobenzenes and aromatic hydrocarbons, etc. It is difficult to degrade organic matter, and the conventional process is often difficult to meet the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F1/461C02F101/30C02F103/36
CPCC02F1/001C02F1/46109C02F1/52C02F1/5245C02F1/66C02F1/725C02F9/00C02F2001/007C02F2001/46133C02F2101/30C02F2103/365C02F2209/08C02F2209/14
Inventor 祝建中杨瑞洪丁莹付婷张迪
Owner HOHAI UNIV
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