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Harmless processing method of food pickling wastewater

A technology of harmless treatment and wastewater treatment agent, which is applied in the fields of food industry wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., which can solve the problems of difficult engineering application, lack of stability, and increased operating costs. , to achieve the effect of cheap raw materials, suitable for large-scale industrial application, and high efficiency of wastewater treatment

Inactive Publication Date: 2016-12-07
吴小慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: electrocoagulation, adsorption and reverse osmosis, but due to high investment costs, high operating costs, and the risk of secondary pollution, engineering applications are more difficult
In addition, the screening and development of new halophilic bacteria and halophilic bacteria make it a technical means to treat saline wastewater, but because the addition of halophilic bacteria destroys the original microbial community structure, it does not have long-term stability. Need to be added periodically, increasing operating costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Add sodium hypochlorite to the wastewater to be treated for sterilization, then add NaOH with a concentration of 15%, adjust the pH to 9, and then add flocculant, the wastewater after flocculation enters the multimedia filter for treatment, and the flocculant is composed of polymer 10 parts of aluminum chloride, 8 parts of iron sulfate, 4 parts of polyacrylamide, 6 parts of calcium hydroxide, 4 parts of chitosan, 2 parts of sodium alginate, 3 parts of agar;

[0022] (2) Put the filtered waste water into the aeration tank, and add a compound microbial agent into the aeration tank; the total weight of the compound microbial agent is 0.01% of the wastewater weight, and the treatment time is 10 hours, of which the compound microbial agent The composition of the agent is 15 parts of Rhodopseudomonas coliformis, 8 parts of Rhodospirillum chrysanthemum, 12 parts of Pediococcus pentosaceus, 7 parts of Lactobacillus brinneri, 50 parts of sterile water, 25 parts of potato extr...

Embodiment 2

[0029] (1) Add sodium hypochlorite to the wastewater to be treated for sterilization, then add NaOH with a concentration of 15%, adjust the pH to 9.2, and then add flocculant, and the flocculated wastewater enters the multimedia filter for treatment, in which the flocculant is composed of polymer 10 parts of aluminum chloride, 8 parts of iron sulfate, 4 parts of polyacrylamide, 6 parts of calcium hydroxide, 4 parts of chitosan, 2 parts of sodium alginate, 3 parts of agar;

[0030] (2) Put the filtered waste water into the aeration tank, and add the composite microbial agent into the aeration tank; the total weight of the composite microbial agent is 0.015% of the wastewater weight, and the treatment time is 13 hours, of which the composite microbial agent The composition of the agent is 15 parts of Rhodopseudomonas coliformis, 8 parts of Rhodospirillum chrysanthemum, 12 parts of Pediococcus pentosaceus, 7 parts of Lactobacillus brinneri, 50 parts of sterile water, 25 parts of p...

Embodiment 3

[0037] (1) Add sodium hypochlorite to the wastewater to be treated for sterilization, then add NaOH with a concentration of 15%, adjust the pH to 9.4, and then add a flocculant, and the flocculated wastewater enters a multimedia filter for treatment, in which the flocculant is composed of polymeric 10 parts of aluminum chloride, 8 parts of iron sulfate, 4 parts of polyacrylamide, 6 parts of calcium hydroxide, 4 parts of chitosan, 2 parts of sodium alginate, 3 parts of agar;

[0038] (2) Put the filtered waste water into the aeration tank, and add a compound microbial agent into the aeration tank; the total weight of the compound microbial agent is 0.02% of the wastewater weight, and the treatment time is 16 hours, of which the compound microbial agent The composition of the agent is 15 parts of Rhodopseudomonas coliformis, 8 parts of Rhodospirillum chrysanthemum, 12 parts of Pediococcus pentosaceus, 7 parts of Lactobacillus brinneri, 50 parts of sterile water, 25 parts of potat...

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PUM

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Abstract

The invention discloses a harmless processing method of food pickling wastewater. Mainly, a flocculant of a special formula and the wastewater are stirred for reaction, and processed water meeting the emission standard is obtained through the processing of a multi-medium filter, the metabolic processing of an aeration tank compound microorganism bacterium agent, the electric coagulation processing of high-voltage pulses, the eluting and filtering of ion exchange resin, the stirring, standing and filtering of a special compound wastewater processing agent and the reverse osmosis processing of a high-pressure pump. According to the processed water obtained through the wastewater processing method of the optimization process, wastewater processing efficiency is high, and the emitted processed water can reach the national standard; meanwhile, the method is simple in process, strong in operability, free of environment pollution and capable of meeting the industry requirements and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a harmless treatment method for wastewater generated from food pickling. Background technique [0002] In the domestic agricultural and sideline food processing industry, the sauce pickling industry has developed rapidly in recent years, but the pickling wastewater has the characteristics of high salinity and high concentration of organic pollutants. In the past, physical and chemical processes were often used to treat high-salt wastewater. For example: electrocoagulation, adsorption and reverse osmosis, but due to high investment costs, high operating costs, and the risk of secondary pollution, engineering applications are more difficult. In addition, the screening and development of new halophilic bacteria and halophilic bacteria make it a technical means to treat saline wastewater, but because the addition of halophilic bacteria destroys the original microbial com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/42C02F1/44C02F1/463C02F1/50C02F1/52C02F1/54C02F1/56C02F1/66C02F101/20C02F101/34C02F103/32
CPCC02F9/00C02F1/40C02F1/42C02F1/441C02F1/444C02F1/463C02F1/50C02F1/5245C02F1/54C02F1/56C02F1/66C02F2101/20C02F2101/34C02F2103/32
Inventor 吴小慧
Owner 吴小慧
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