System and method for recycling animal protein feed from casing processing waste liquid
A technology of animal protein feed and processing waste liquid, which is applied in the field of recycling and reuse system of animal protein feed in casing processing waste liquid, can solve the problems of large amount of waste water, complicated treatment process, waste of soluble protein, etc., to reduce pollution, reduce cost, waste reduction effect
Active Publication Date: 2015-01-14
徐磊
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Problems solved by technology
[0004] At present, there are two main problems in casing processing wastewater treatment technology: on the one hand, there are generally problems such as high energy consumption in the treatment process, complicated treatment process, and incomplete removal of pollutants, and the high cost of processing wastewater treatment also seriously restricts enterprises. On the other hand, the amount of waste water from casing processing in my country is huge, and the resource utilization of waste water is very weak, the effective recycling and utilization of waste water has not been realized, and a large amount of organic matter in waste water has not been fully recovered.
At present, the main treatment method of this wastewater is to directly carry out multi-stage biological treatment, and use anaerobic and aerobic methods to reduce the COD and BOD values in the wastewater. Although the wastewater treated by this technology can meet the national discharge standards, the considerations of this method It is only treated, but a large amount of soluble protein that is recoverable and of great economic value in the wastewater is greatly wasted
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[0031] Please refer to figure 1 Schematic diagram of the recovery and reuse system of animal protein feed in the waste liquid of casing processing figure 2 The flow block diagram of the animal protein feed recycling system in the casing processing waste liquid of the present invention is a detailed description of the animal protein feed recycling system and recovery method in the casing processing waste liquid of the present invention.
[0032] The casing processing wastewater is stored in the collecting tank 1 and rotated and stirred. The stirring rate is 50-80r / min, the stirring time is 30-60min, the pH of the casing processing wastewater is adjusted to about 7.0-7.5, and then the casing processing wastewater is pumped into the wastewater stirring reactor 2, and aluminum chloride is added. , Calcium chloride, gelatin, sodium alginate, kaolin or diatomaceous earth in combination of two or more flocculants, the mass concentration is 3-8g / L, uniformly agitated for pretreatment, t...
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Abstract
The invention discloses a system and a method for recycling animal protein feed from casing processing waste liquid. The system comprises a water collection pool, a waste water stirring reactor, a solid-liquid separator, a protein feed collector and a protein feed recycling tank. The method comprises the following steps: carrying out pretreatment and stirring reaction to waste water to obtain solid-liquid layers, treating through the solid-liquid separator to obtain sediment, and drying the sediment to obtain the recycled animal protein feed.
Description
Technical field [0001] The invention relates to a resource utilization method of casing processing wastewater, in particular to a system and method for recycling animal protein feed in casing processing waste liquid. Background technique [0002] Casings are a bulk animal product exported by my country. The export market covers more than 50 countries and regions in the world. There are more than 5,000 production companies in the country, and most of these production companies are small and medium-sized enterprises or even small workshops. The production technology is backward, the equipment is simple, and A large amount of organic wastewater is produced during the production process. Wastewater is rich in animal protein and organic substances that are difficult to degrade fat. The content of amino acids in wastewater is high, and the chemical oxygen consumption is also relatively high. Because wastewater will reduce the dissolved oxygen in the river, it will cause microorganisms a...
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IPC IPC(8): C02F9/04A23K1/10
CPCC02F9/00C02F2001/007C02F2301/08
Inventor 徐磊
Owner 徐磊