Oil gasification gas-making waste water treating system and method

Abstract

The invention provides an oil gasification gas-making waste water treating system. The system comprises an oil-line monitoring analyzing system, a PLC programmable logic controller and a waste water treating module, and the on-line monitoring analyzing system is used for conducting monitoring analyzing on the water quality content and temperature of oil gasification gas-making waste water and transmitting monitoring analyzing data to the PLC programmable logic controller; the PLC programmable logic controller is used for outputting a control signal to the waste water treating system after themonitoring analyzing data is processed; the waste water treating module comprises a first-stage pretreating module, a second-stage biochemical treating module and a third-stage deep treating module which are sequentially connected; treating is conducted on the oil gasification gas-making waste water by the first-stage pretreating module, the second-stage biochemical treating module and the third-stage deep treating module according to the control signal instruction output by the PLC programmable logic controller. According to the system and a method, process coupling integration and parametricdesign are conducted, and therefore the degree of modularization, intelligentizing and integration of the oil gasification gas-making waste water is effectively improved.

Description

Technical field [0001] The invention relates to an integrated treatment technology for high-concentration organic wastewater, in particular to an oil and gasification gasification wastewater treatment system and method, which aims at the problem of oil and gasification gasification wastewater treatment produced by nitrogen fertilizer industrial enterprises during the production process, and performs process integration With parametric design, the process is modularized, intelligent and integrated. Background technique [0002] my country is a populous country as well as a large agricultural country. The increase in agricultural production is inseparable from chemical fertilizers, which account for about 40% of the increase in agricultural production. Therefore, the production of chemical fertilizers has always been in a very important position in the development of the national economy. After the construction of the People's Republic of China since the founding of the People's R...

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Problems solved by technology

However, the traditional whole-process biological denitrification is widely used at present, and the C / N of oil and gasification gas-making wastewater is extremely low. To remove ammonia nitrogen, a large amount of organic carbon needs to be added, which greatly increases the operating cost;

[0011] (3) The air catalytic oxidation method and the recovery method need to add a large amount of catalyst or auxiliary agent, and require a precise control system. Not only does it require professional operation, but also the investment and operation costs are very large, which has caused certain economic losses to the enterprise. Burden, which is rarely used at present;

[0012] (4) Oil and gasification gas production wastewater will cause great changes in wastewater indicators due to differences in processes and raw materials, resulting in large load changes in the treatment system and unstable effluent indicators;

[0013] (5) Oil and gasification gas production wastewater has a great impact on the environment, but the current level of technology depth, automation, and equipment quality is relatively low, which greatly hinders the development of nitrogen fertilizer industry

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