Continuous degradation reaction device for industrial waste water
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A degradation reaction and industrial wastewater technology, applied in the direction of heating water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of many intermediate links, time-consuming, high treatment costs, etc., and achieve the effect of continuous degradation reaction
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Problems solved by technology
The above-mentioned treatment technologies all have certain shortcomings, or the treatment is not thorough enough to cause secondary pollution, or there are many intermediate links, time-consuming, and high treatment costs
Method used
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example 1
[0010] Example 1: Pesticide Paraquat Wastewater Treatment
[0011] The main characteristic pollutants in pesticide paraquat wastewater are: sodium cyanide, sodium chloride, ammonia, ammonium chloride, chloromethylpyridine, pyridine, paraquat cation, synthetic by-products, etc. After pretreatment, influent COD: 20000mg / L. Technological process: Waste water is pumped into the reactor by a high-pressure plunger pump and mixed with high-temperature steam. The reaction temperature is controlled at 560°C, the pressure is 25MPa, the reaction time is 30s, the effluent COD: 68ml / L, and the waste residue is collected in the solid depositor and removed.
example 2
[0012] Example 2: Biochemical pharmaceutical wastewater
[0013] The biochemical drug penicillin fermentation broth is press-filtered and the filtrate is used to extract medicinal ingredients by chemical means, resulting in two types of wastewater: fermentation wastewater and extraction wastewater. Fermentation wastewater contains fermentation residues and microorganisms, etc., and the content of suspended solids is high. Extraction wastewater is the wastewater after the filtrate is extracted with chemical methods. The influent COD: 30000mg / L. This type of wastewater treatment process: the wastewater The high-pressure plunger pump is pumped into the reactor to mix with high-temperature steam, the reaction temperature is controlled at 540°C, the pressure is 23MPa, the reaction time is 1min, the effluent COD: 100ml / L, and the waste residue is collected in the solid depositor and removed.
example 3
[0014] Example 3: Printing and dyeing wastewater
[0015] Dyeing wastewater contains slurry, dyes, auxiliary agents, surfactants, etc., COD=26400mg / L. Technological process: Waste water is pumped into the reactor by a high-pressure plunger pump and mixed with high-temperature steam. The reaction temperature is controlled at 580°C, the pressure is 25MPa, the reaction time is 2min, and the effluent COD: 18ml / L.
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Abstract
The invention relates to a continuous degradation reaction device for industrial waste water. The device comprises a raw material fluid feeding system, a reactor, a high-pressure steam generation system, a cooling pipeline, a solid depositor and the like, wherein the raw material fluid feeding system is formed by connecting a plurality of plunger pumps in parallel; the casing of the reactor is provided with an insulation layer; and the reactor and the cooling pipeline are connected with the solid depositor. Industrial waste water and an oxidant (hydrogen peroxide) are fed into the reactor through the plunger pumps and then mixed with steam exhausted from the high-pressure steam generation system; as the temperature instantaneously rises, carbon dioxide, water and inorganic salt solid particles are generated due to oxidative degradation reaction; after being rapidly cooled through the cooling pipeline, the solid particles are collected in the solid depositor, and the carbon dioxide and water are discharged through a removal pipeline. According to the invention, organic matters in industrial waste water can be rapidly degraded into carbon dioxide and water, no offensive odor and secondary pollution are generated, the degradation reaction is continuous, the reaction speed is high, large-scale industrial waste water can be treated conveniently. Thus, the reaction device is easy to implement industrial production.
Description
technical field [0001] The invention relates to a continuous degradation reaction device for industrial waste water, which adopts a reactor to oxidize and degrade raw material liquid, and then rapidly cools down through a cooling pipeline, collects solid particles in a solid sedimentator, and discharges carbon dioxide and water through an exhaust pipeline. It belongs to the technical field of environmental protection equipment. Background technique [0002] Industrial wastewater (pharmaceutical, pesticide, biochemical, printing and dyeing wastewater) belongs to a type of high-concentration, refractory biodegradable wastewater. The concentration of pollutants is high, and the COD (chemical oxygen demand) can reach tens of thousands of milligrams per liter; Stinky, very serious pollution to the environment. The treatment of industrial wastewater (pharmaceutical, pesticide, biochemical, printing and dyeing wastewater) has been paid more and more attention by people. [0003] ...
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