Process for processing saccharin sodium wastewater

A treatment process, sodium saccharin technology, applied in the field of sodium saccharin wastewater treatment process, can solve the problems of unbearable high concentration impact load, high cost, high construction investment of sewage treatment plants, etc., to improve stability and treatment effect, reduce Reaction volume and effect of shortening start-up time

Inactive Publication Date: 2011-08-17
天津北方食品有限公司 +1
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Problems solved by technology

However, the cost of the advanced oxidation method is too high, and the common biochemical method needs more than 5 times of dilution water to dilute the wastewater to a biologically acceptable concentration because it cannot withstand high-concentration impact loads.
[0004] The construction of sewage

Method used

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  • Process for processing saccharin sodium wastewater
  • Process for processing saccharin sodium wastewater
  • Process for processing saccharin sodium wastewater

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Embodiment Construction

[0023] Below in conjunction with the examples, the present invention is further described, the following examples are illustrative, not limiting, and the protection scope of the present invention cannot be limited by the following examples.

[0024] A treatment process for sodium saccharin waste water, the steps are:

[0025] (1) The waste water is pumped into the iron-carbon micro-electrolytic cell 1 through the No. 2 lift pump from the waste water regulating tank for pretreatment.

[0026] Iron-carbon micro-electrolysis method is a good process for treating wastewater by using the reaction principle of Fe / C primary battery, also known as internal electrolysis method, iron filings filtration method, etc. Complexation, electrodeposition and co-precipitation are integrated into one. As a pretreatment technology before biochemical treatment, iron-carbon micro-electrolysis technology can not only greatly reduce the concentration of organic matter, but also remove or reduce the t...

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Abstract

The present invention relates to a process for processing saccharin sodium (sodium ortho-sulphobenzimide) wastewater, which comprises the following steps of: (1) pumping wastewater into an iron-carbon microelectrolytic pool from a wastewater adjusting pool by a lifting pump to perform preprocessing; (2) carrying out degradation and precipitation in a Huffington precipitating pool; (3) hydrolyzing, acidulating and processing in the precipitating pool; (4) entering the adjusting pool to adjust water quality; uniformly adjusting and then charging in a UASB reactor; (5) entering a biological contact oxidation pool; (6) leading the sewage after biological contact oxidation pool reaction to flow into a secondary precipitating pool; precipitating and then flowing into an air floatation pool to be discharged after reaching the standard. Compared with other process flows, the process can reduce dilute water volume and the running cost; and by test demonstration, the method is practical and can achieve the discharge water requirement. The process for processing saccharin sodium (sodium ortho-sulphobenzimide) wastewater provided by the present invention optimizes the running parameter on the basis of a middle test, solves the encountered problem and can design the reaction process flow which can achieve the requirement.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a treatment process for sodium saccharin waste water. Background technique [0002] After analyzing the water quality of sodium saccharin wastewater in the laboratory, it is found that the sodium saccharin wastewater contains a very small amount of oil components, and the water quality is relatively acidic. The results of chromatography-mass analysis show that the contribution of COD in sodium saccharin wastewater is dominated by large molecular weight and refractory organic components, the most important of which are aromatic compounds and toxic organic solvents, and the main organic compounds are o-aminobenzene Methyl ester, methyl o-chlorobenzoate, phthalic anhydride and its derivatives, etc., as well as high concentrations of inorganic salts, especially Cu2+, C1, SO42+. Therefore, it is difficult to dispose of it through simple biodegradation. [0003] In order to treat sacc...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/461C02F1/72C02F3/28
Inventor 李胜彬袁军冷文广马近贤朱益刚
Owner 天津北方食品有限公司
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