Treating method for pickles waste water

A treatment method and wastewater technology, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of ineffective wastewater treatment, loss of activity of flocculants, and impossibility of solid-liquid Separation and other problems, to achieve the effect of simple equipment, saving salt, and convenient operation

Inactive Publication Date: 2005-08-17
王明松
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AI Technical Summary

Problems solved by technology

This method can be used for general wastewater treatment, but in pickling and soaking wastewater, the flocculant loses its activity, no longer produces flocculatio

Method used

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Embodiment Construction

[0028] The method for treating the waste water from pickling and making pickles comprises the following steps: firstly pretreating the waste water from pickling and making pickles, mainly filtering out larger solids, and carrying out certain precipitation to remove as much as possible the silt in the waste water; and then , the pretreated wastewater is treated by electrolysis, in which the electrolysis electrodes are all made of aluminum plates, and the anode and cathode are used alternately; finally, the brine and the sediment are separated.

[0029] In the present invention, the electrode plate is a rectangular aluminum plate with a preset line interface cast from pure aluminum. The voltage acting on the plate is an adjustable DC voltage below 36V. Add it to the electrode plate with 6-8 grades (the number of grades depends on the water volume) combined with a specific inter-electrode and inter-group distance, and then form an electric field with a controllable electric field...

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Abstract

The process of treating waste water from vegetable pickling production includes the following steps: pre-treatment of waste water; electrolytic treatment in an electrolytic bath with anode of aluminum and cathode of other conducting material; and separation between salt water and precipitate. The treated supernatant is clear water containing only salt and is reused to save water and salt and lower production cost. The present invention can avoid soil and water pollution, protect environment and low production cost.

Description

technical field [0001] The invention relates to a method for treating waste water. Background technique [0002] A large number of pickled and pickled pickle enterprises directly discharge untreated production wastewater with high salt content and high pollution (COD, BOD, SS, etc.), which not only pollutes the natural environment, but also causes serious damage to water resources and table salt. waste. [0003] Due to the large number of enterprises producing pickles and their small scale, it is often thought that the waste water is less and discharged directly. However, the number of enterprises producing pickles is large, and the pollution consequences caused by direct discharge are very serious; The waste of resources and production raw materials has increased the production cost of the enterprise, making it "impossible" to treat the waste water of pickles and pickles - due to the increase in production costs, the enthusiasm of this type of enterprises for waste water t...

Claims

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Application Information

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IPC IPC(8): C02F1/461
Inventor 阎树平王明松
Owner 王明松
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