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Efficient processing technique method of wastewater containing protein

A treatment process and protein wastewater technology, which is applied in food industry wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of insufficient recovery of soluble protein, difficulty in solid-liquid separation, limited processing speed, etc., to achieve It is convenient for biochemical treatment, good separation effect, and the effect of saving dosage

Inactive Publication Date: 2016-05-11
BEIJING SUN SILVER SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difficulty of solid-liquid separation, not only the separation efficiency is poor, but the energy consumption is large and the processing speed is limited. At the same time, the soluble protein in the solution is not fully recovered, which is also a major economic loss.

Method used

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  • Efficient processing technique method of wastewater containing protein

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The protein-containing waste water from the corn fermentation liquid has a treatment capacity of 65t / h. After heat exchange by a heat exchanger, the heater is heated to 90°C and then sent to the stator-rotor reactor.

[0027] The precipitant A is sent into the beating tank through the screw conveying and metering I to mix and dissolve with the supernatant obtained after the wastewater treatment, and the obtained slurry is output through the slurry pump I and passes through the vibrating screen, the filter residue is discharged, and the liquid phase is injected into the slurry tank, and then It is transported into the stator-rotor reactor through the slurry pump.

[0028] The precipitant B is sent into the dissolving tank through screw conveying metering II, mixed and dissolved with the supernatant liquid reused after wastewater treatment, and then sent to the stator-rotor reactor.

[0029] After the three materials are quickly mixed and reacted in the stator-rotor react...

Embodiment 2

[0033] Starch slurry protein-containing wastewater, with a treatment capacity of 100t / h, is sent to the stator-rotor reactor after being heated to 120°C by a heat exchanger.

[0034] The precipitant A is sent into the beating tank through the screw conveying and metering I to mix and dissolve with the supernatant obtained after the wastewater treatment, and the obtained slurry is output through the slurry pump I and passes through the vibrating screen, the filter residue is discharged, and the liquid phase is injected into the slurry tank, and then It is transported into the stator-rotor reactor through the slurry pump.

[0035] The precipitant B is sent into the dissolving tank through screw conveying metering II, mixed and dissolved with the supernatant liquid reused after wastewater treatment, and then sent to the stator-rotor reactor.

[0036] After the three materials are quickly mixed and reacted in the stator-rotor reactor, the obtained slurry flows into the circulation...

Embodiment 3

[0040] The protein-containing waste water from corn steep liquor has a treatment capacity of 350t / h. After heat exchange by a heat exchanger, the heater is heated to 60°C and then sent to the stator-rotor reactor.

[0041] The precipitant is metered into the beating tank by screw conveying and mixed and dissolved with the supernatant obtained after wastewater treatment, and the obtained slurry is output through the slurry pump I and passed through the vibrating screen, the filter residue is discharged, and the liquid phase is injected into the slurry tank, and then passed through the slurry The material is pumped into the stator-rotor reactor.

[0042] After the two materials are quickly mixed and reacted in the stator-rotor reactor, the resulting slurry flows into the circulation tank and is divided into two streams by the circulation pump, one is sent back to the stator-rotor reactor, and the other is sent to the settling tank Settlement treatment.

[0043] The supernatant ...

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Abstract

The invention provides an efficient processing technique method of wastewater containing protein. By adopting the efficient processing technique method provided by the invention, the wastewater containing the protein during the processing of grains and other biomass raw materials can be efficiently processed with low cost; when the wastewater is large in quantity and higher in solid content, the advantages of efficiency and energy saving of the efficient processing technique method are more outstanding; particularly, during the verification in fields of fermentation, corn biochemical alcohol preparation and feed processing, the utilization rate of a precipitating agent is high, the recovery efficiency of the protein is high, and the processing cost is low.

Description

technical field [0001] The invention relates to a high-efficiency treatment process of protein-containing wastewater, which is characterized in that a stator-rotor reactor is used as a key equipment to process protein-containing wastewater produced in the processing of grain and other biomass raw materials, and belongs to the field of separation engineering and environmental protection . Background technique [0002] The process of processing grain and other biomass raw materials is often accompanied by waste water generation. Due to the nature of the industry, its organic matter content is high. This waste water must be treated before it can be discharged up to the standard. [0003] The most common separation methods are air flotation and precipitation. The disadvantage of the former is that only the insoluble protein in the wastewater can be recovered; the latter has a slurry and high viscosity due to the high solid content of a considerable proportion of the wastewater i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/32
CPCC02F9/00C02F1/52C02F2001/007C02F2103/32C02F2201/007C02F2301/08
Inventor 宋云华杨慧霞刘欣张振雷李正林魏玉胜
Owner BEIJING SUN SILVER SCI & TECH