Method for improving efficiency of contact oxidation tank in wastewater treatment of neomycin

A contact oxidation pond and wastewater treatment technology, which is applied in natural water treatment, water treatment parameter control, chemical instruments and methods, etc., can solve the problems of difficult treatment, difficult separation of wastewater crystals, large amount of wastewater, etc., and achieve the goal of improving efficiency Effect

Inactive Publication Date: 2019-03-01
YICHANG SANXIA PHARMA
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Problems solved by technology

In the process of treating amino acid wastewater in the supporting sewage treatment facilities of the sewage station, there are often problems such as large amount of wastewater, difficult separation of crystals contained in wastewater, and difficult treatment.

Method used

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  • Method for improving efficiency of contact oxidation tank in wastewater treatment of neomycin

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Embodiment 1

[0016] against attached figure 1 According to the technological process, the incoming water from the workshop is divided into two kinds of wastewater, one is high-concentration wastewater and the other is ammonia washing wastewater. The ammonia washing wastewater is discharged from the workshop into the ammonia washing wastewater grid well of the sewage station to remove large suspended solids, so as not to block the pump and valve, and enter the ammonia washing tank for collection. After being lifted by the pump to the deammonization packing tower, the stripping conditions are controlled, and the After the ammonia is blown off, it enters the comprehensive adjustment tank. The high-concentration wastewater is discharged from the workshop into the high-concentration wastewater grid. After removing the large suspension, it enters the comprehensive adjustment tank to mix with the stripped ammonia washing wastewater. Here, the mixed comprehensive wastewater is pumped up to In the...

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Abstract

The invention relates to a method for improving the efficiency of a contact oxidation tank in the wastewater treatment of neomycin. The method includes making neomycin wastewater pass through a hydrolysis acidification tank and then enter the contact oxidation tank, adding glucose, opening the reflux of a secondary sedimentation tank, opening inflow of the contact oxidation tank and adjusting to intermittent inflow; adding sodium carbonate to the contact oxidation tank and adjusting the pH of sludge in the contact oxidation tank to 8-8.5; introducing air to the bottom of the contact oxidationtank for aeration to control dissolved oxygen in a water outlet of the contact oxidation tank to be 2-4 mg/L to improve the efficiency of the contact oxidation tank. By means of the technical scheme,the environmental protection problem of the wastewater treatment in the production of the neomycin is solved, the difficulty in the treatment of high-concentration ammonia nitrogen is solved, the wastewater discharge meets the standard comprehensively, continuous stable operation reaching the standard is achieved, and the environmental risks are reduced. Key process steps in the wastewater treatment are found, and the suitable process is determined. A method for improving the sedimentation performance of the sludge and a method for increasing the retention time of nitrifying bacteria in the contact oxidation tank are found.

Description

technical field [0001] The invention relates to a method for improving the efficiency of a contact oxidation pool in a sewage treatment process, in particular to a method for improving the efficiency of a contact oxidation pool in the treatment of amino acid wastewater. Background technique [0002] The wastewater produced by biopharmaceuticals is a kind of high-concentration organic wastewater. Due to the particularity of the biopharmaceutical production process, the water volume and water quality of wastewater discharge vary greatly. Tank water, ground flushing water, chromatography wastewater, concentrated wastewater, crystallization wastewater, etc. It is mainly composed of sugars, proteins, amino acids and other organic acids, rich in nutrients and salts required for microbial growth; B / C is greater than 30%, good biochemical properties; pH value is acidic. The main characteristics of the wastewater are: the COD concentration is relatively high, with an average of 3000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/34
CPCC02F1/52C02F3/30C02F2103/343C02F2209/06C02F2209/08C02F2209/14C02F2209/22C02F2301/046C02F2305/06
Inventor 晏涛王建国谢培科杨道治
Owner YICHANG SANXIA PHARMA
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