High-concentration high-chroma wastewater treatment technique

A wastewater treatment, high-concentration technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Membrane replacement costs are expensive and other problems, to achieve the effect of shortening residence time, easy operation and maintenance, and good effluent quality

Active Publication Date: 2012-08-22
喻明生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantages are: because the concentration and chromaticity of various pollutants in the wastewater are high, the load of the biological pool is large, the residence time is long, the membrane is easily blocked or fails, the replacement cost of the membrane is expensive, and it is difficult to ensure long-term normal operation

Method used

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  • High-concentration high-chroma wastewater treatment technique
  • High-concentration high-chroma wastewater treatment technique
  • High-concentration high-chroma wastewater treatment technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: a certain landfill site daily processing 300m3 landfill leachate is an example, the treatment process is as follows figure 1 As shown in , the total residence time of the designed two-stage anaerobic tank is 2-3 days, a total of 600-900m 3 ;The designed water distribution pool is 50m for any multiple dilution water distribution 3 ;According to different water quality, the total residence time of the three-stage aerobic pool is at least 300m a day 3 ; Clear water pool 50m 3 : filter pool 100m 3 . specific methods:

[0021] 1. In the anaerobic pool and the aerobic pool, respectively put bacteria and micellar bacteria into them. The types of bacteria are: Achromobacter, Aerobacter, Alcaligenes, Nitrosomonas, Bacillus, Bacillus, and Corynebacterium Genus, Comamonas, Flavobacterium, Microbacterium, Nocardia, Pseudomonas, Sarcina, Spirillum, Kinetoglia, Coccomonas, Bdellovibrio One or more of the genus, Pseudocoliform, Thiobacillus, Acinetobact...

Embodiment 2

[0029] Embodiment 2: A certain sugar factory processes 300m per day 3 Alcohol waste mash as an example:

[0030] The water quality of alcohol waste mash from a sugar factory is shown in Table 2 below

[0031]

[0032]

[0033] The water quality control of each process before and after treatment is shown in the following table 3

[0034]

[0035] Note: The discharge standard is "Sewage Comprehensive Discharge Standard" ).

[0036] The treatment steps in this embodiment are the same as the landfill leachate treatment steps in Embodiment 1. In order to save operating costs to a greater extent, at the front end of the present invention, the alcohol waste mash of Pingguo, Guangxi can be used as the boiler ash flushing water patent, and the ash flushing water enters the process of the present invention for treatment.

Embodiment 3

[0037] Example 3: The paint workshop of an automobile factory handles 300m per day 3 Electrophoretic paint phosphating wastewater as an example:

[0038] The comparison of water quality before and after treatment of electrophoretic paint phosphating wastewater in the paint workshop of an automobile factory is shown in Table 4 below:

[0039]

[0040] Note: The discharge standard is "Sewage Comprehensive Discharge Standard" .

[0041] The treatment steps in this embodiment are the same as the landfill leachate treatment steps in Embodiment 1.

[0042] Case 4: A wool spinning factory plans to process 1500m per day 3 Dyeing and dyeing wastewater as an example

[0043] The water quality comparison of each process before and after the treatment of dyeing and finishing wastewater in a wool spinning mill is shown in Table 5 below:

[0044]

[0045]

[0046] Note: The discharge standard is "Sewage Comprehensive Discharge Standard" .

[0047] ...

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Abstract

The invention discloses a high-concentration high-chroma wastewater treatment technique which comprises steps as follows: wastewater is treated through primary and secondary anaerobic tanks, a distribution reservoir, primary, secondary and tertiary aerobic biological tanks; the qualified water degraded by aerobes naturally flows into a clear water disinfection tank; the disinfected water naturally flows into a filter tank, thereby removing suspended substances and residual color by adsorption and filtration; the qualified filtered water flows back to the distribution reservoir to dilute the circulating water, and excess water enters a clear water reservoir; and the water outlet of the clear water reservoir is provided with a flow controller for controlling the balance between the overflow discharge water flow and the raw wastewater water inflow of the sewage pump. The treatment technique disclosed by the invention is suitable for treating multiple types of high-concentration high-chroma wastewater, such as garbage leachate, dye mother liquor, dyeing and finishing wastewater, alcohol waste fermented liquor in cane mills, DDNP waste liquor, soy sauce liquor, traditional Chinese medicine wastewater, electrophoretic paint wastewater, slaughter wastewater, aquacultural wastewater and the like. The invention not only can treat multiple types of high-concentration high-chroma wastewater to achieve or exceed the discharge standard specified by China, but also can simplify the complex high-concentration high-chroma wastewater treatment, thereby greatly lowering the wastewater treatment cost.

Description

technical field [0001] The invention relates to a high-concentration, high-chroma wastewater treatment process. Background technique [0002] Water resources are becoming more and more scarce in the world today, and various domestic sewage, industrial wastewater, agricultural and animal husbandry sewage, etc. are seriously polluting our water sources and living environment. [0003] At present, the treatment of high-concentration and high-chroma wastewater has been perplexing people technically. There are no good successful experience reports at home and abroad, and the methods used have not yet achieved good treatment results, and the investment and operation costs are relatively high. High, the operating cost of treating one ton of high-concentration and high-chroma wastewater ranges from tens of yuan to hundreds of yuan. Take the leachate treatment comparison of a waste landfill in Kunming as an example. The current technologies are: ammonia blowing, hydrolysis, aerobic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 喻明生
Owner 喻明生
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