High-salt preserved szechuan pickle wastewater treatment system

A mustard waste water and treatment system technology, which is applied in food industry waste water treatment, water/sewage treatment, water treatment parameter control and other directions, can solve problems such as the failure of the electrodialyser to work normally, the salinity reduction of high-salt mustard waste water, etc., to reduce pollution Concentration, reduction of salt loss, effect of shortened process flow

Pending Publication Date: 2021-06-22
CHONGQING UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies corresponding to the prior art, providing a kind of high-salt mustard mustard wastewater treatment system, combining the advantages of biological method and electrodialysis treatment technology two types of technology, in reducing COD concentration (organic matter concentration) and NH 4 + -N concentration (ammonia nitrogen concentration), while reducing the SS concentration (mixed liquid suspended solids concentration) of mustard mustard wastewater, ensuring the normal operation of the electrodialyzer, reducing the salinity of high-salt mustard mustard wastewater, combined with aerobic and anaerobic microorganisms The complex bacteria system solves the problem of removing organic matter and nitrogen and phosphorus under high-salt conditions. It can efficiently treat high-salt mustard mustard wastewater with short process, low operating cost, stable and efficient operation, and removes high-salt mustard mustard wastewater through grilles.

Method used

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  • High-salt preserved szechuan pickle wastewater treatment system
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  • High-salt preserved szechuan pickle wastewater treatment system

Examples

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Example Embodiment

[0038] Example 1:

[0039] The present invention is treated according to the above steps, and the mustard wastewater of a mustard plant in Fuling, the COD, NH in the mustard wastewater. 4 + -N and SS water quality are 14380 to 14410, 441 to 453 and 218 to 230 mg / L, and the salinity is 7%;

[0040]After the grille, the pH of the solution is adjusted to 6.5 to 8.5, and the circulating reaction tank is entered into a circulating cell for biological strengthening treatment, and the hydrochloride agent (5% to 10% inoculum) is activated (refrigerated tantrochloride compound. The liquid is expanded, and the medium is added to the optimum concentration) 3d, and the HRT = 12H sequential batch is provided, the drain ratio is 1 / 3, the aeration intensity is 1000 l / h, the sludge concentration is 3200MB / L; then the condensed, flocculation, precipitation treatment, that is, the coagulation flocculation residence time is 0.7 h, the coagulant capital is 70mg / L, the flocculation amount is ...

Example Embodiment

[0045] Example 2:

[0046] After treatment, the mixture is treated in the production process of a mustard plant in Chongqing, and the mixture is sequentially treated with high salt mustard wastewater pre-treatment devices, electrodialysis, UASBs, electrodialysis, UASB After the reactor, the final water can meet the emission standard, and the specific treatment is shown in Table 2.

[0047] Table 2

[0048]

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Abstract

The invention provides a high-salt preserved szechuan pickle wastewater treatment system which comprises a high-salt preserved szechuan pickle wastewater pretreatment device, an electrodialyzer and a UASB reactor which are arranged in sequence. Two microorganisms of the complex microbial inoculant growing on the surface of the filler in an attached mode and activated sludge growing in a suspended mode can coexist in the system, most of organic matter and ammonia nitrogen in the preserved szechuan pickle wastewater are removed, suspended matter in the purified wastewater is further removed through a sedimentation tank, the load of an electrodialyzer is relieved, and the utilization rate of the electrodialyzer is increased, the processing efficiency is improved, and the operation cost is reduced. By adopting the method to treat the high-salt preserved szechuan pickle wastewater, the microbial concentration is high, the impact load resistance is high, the organic load treatment capacity is high, the biological nitrogen and phosphorus removal capacity is high, the pretreatment effect is good, and the engineering investment and the operation cost are low.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a high-salt mustard mustard wastewater treatment system. Background technique [0002] Mustard mustard is a kind of semi-dry non-fermented pickle, which is pickled with stem mustard as raw material. It is a very popular side dish in my country and has become an indispensable variety on people's table. Mustard mustard wastewater produced in the production of mustard mustard is a kind of wastewater with high salt content, high organic matter concentration, high nitrogen and phosphorus, and high osmotic pressure. It has problems such as difficult treatment and high treatment cost. Although some areas have launched some special treatment actions to address this problem, the country has no relevant wastewater pollutant discharge control standards, and production and processing enterprises mainly discharge this type of wastewater after dilution. A large amount of mustard ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/32
CPCC02F9/00C02F1/001C02F1/66C02F3/34C02F3/308C02F1/5281C02F1/5245C02F1/56C02F1/4693C02F3/2846C02F2103/32C02F2203/006C02F2209/06C02F2209/08C02F2209/10C02F2209/02C02F2209/14C02F2209/16C02F2209/44
Inventor 张千赵天涛罗万东刘毫封丽张楚朱宇楠张磊艾铄
Owner CHONGQING UNIV OF TECH
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