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Device for treating high-concentration pectin wastewater in processing canned citrus petals

A technology for pectin wastewater and treatment devices, which is applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of difficulty and high cost of bacterial strain cultivation, and improve solid Liquid separation effect, improvement of reaction effect, improvement of separation and removal effect

Active Publication Date: 2015-04-22
CHINA MACHINERY INT ENG DESIGN & RES INST
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Problems solved by technology

However, since the mature Penicillium lentils added to the biological reaction tank is a special strain, it is difficult to cultivate the strain and the cost is relatively high.

Method used

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  • Device for treating high-concentration pectin wastewater in processing canned citrus petals

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Embodiment Construction

[0024] See attached picture. It includes a grid tank 1 and an aeration regulating tank 2, and the grid tank communicates with the aeration regulating tank through a component 1c; the grid tank 1 is provided with a mechanical grid 1a for filtering out suspended pollutants such as orange peel and orange network ; The aeration regulating tank 2 is provided with a first perforated aeration pipe 2a, which agitates the waste water pneumatically to achieve uniform and homogeneous treatment. In the grid pool 1, the suspended matter such as orange peel and orange network is filtered out by the mechanical grid 1a. The mechanical slag discharge mechanism 1b is arranged in the grid pool 1 of the present invention. type slag discharge mechanism.

[0025] There are reaction sedimentation tank 3, snail sludge dehydration device 4, hydrolytic acidification tank 5, biological contact oxidation tank 6 and sedimentation tank 7;

[0026] The aeration regulating tank 2 is provided with a first p...

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Abstract

The invention relates to a device for treating high-concentration pectin wastewater in processing canned citrus petals. The device comprises a grid pool (1), an aerating adjusting pond (2), a reaction settling pond (3), a spiral sewage dehydrating device (4), a hydrolysis acidification pool (5), a bio-contact oxidation pond (6) and a settling pond (7) which are sequentially communicated, wherein a clean liquid return pipe (10) which is communicated with the aerating adjusting pond is arranged on the upper part of the reaction settling pond; the grid pool is internally provided with a mechanical grid and a mechanical slag-removing mechanism; the aerating adjusting pond, the hydrolysis acidification pool and the bio-contact oxidation pond are internally provided with perforated aerating pipes respectively, and the reaction pond is internally provided with a mechanical stirring mechanism; filler layers are arranged in the middle parts of the hydrolysis acidification pool and the bio-contact oxidation pond. The spiral sewage dehydrating device is used for solid-liquid separation on the wastewater so as to avoid a blocking phenomenon of a high viscosity pectin material, so that the separating and removing effects on the high-concentration pectin wastewater can be improved. The clean liquid on the upper part of the reaction settling pond is returned for the aerating adjusting pond for improving the treatment effect.

Description

technical field [0001] The invention relates to a treatment device for high-concentration pectin wastewater produced by processing canned citrus. Background technique [0002] The mixed wastewater from citrus canning processing is light yellow, with acidic pH, and contains more orange peel, sac coat, meridian, fruit sac, etc. The process of canned citrus processing is complex and produces a wide variety of wastewater, mainly including high-concentration pectin wastewater (acid immersion water, alkali soaking water) and low-concentration pectin wastewater (fruit washing water, fruit scalding water, split water, alkali soaking water) rinse water, water test water, hot water for sterilization, etc.). High-concentration pectin wastewater contains a lot of pectin, and the average concentration of pectin is 4000-5000mg / L. The COD content in pectin is high, and pectin has high viscosity. The main measures to discharge pectin wastewater up to standard. The pectin extracted from w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 罗松柏杨娟娟谢智华陈蕃黄子平
Owner CHINA MACHINERY INT ENG DESIGN & RES INST
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