With the rapid development of industrialization and urbanization, high-concentration wastewater has become an increasingly serious environmental problem. High-concentration wastewater not only contains a large amount of organic matter, inorganic matter, heavy metals and other harmful substances, but also its concentration is far beyond the design and treatment capacity of conventional wastewater treatment facilities. Therefore, the high concentration of wastewater treatment and standard discharge is particularly important.
1. Definition and characteristics of high-concentration wastewater High concentration of wastewater, usually refers to the wastewater containing high concentration of organic matter, heavy metals, toxic and harmful substances and other pollutants. The pollutant content in the wastewater far exceeds the general wastewater, and it is difficult to treat. May contain a variety of different types of pollutants, such as organic matter, heavy metals, radioactive substances, etc. Some pollutants may have inhibitory effects on microorganisms and affect the effect of biological treatment, which is difficult to remove by conventional biological treatment methods.
2. Generation scenario of high-concentration wastewater Chemical production: the wastewater produced in the process of chemical production often contains a large number of organic matter, heavy metals and other pollutants. Pharmaceutical industry: pharmaceutical wastewater usually contains high concentration of organic matter, antibiotics, etc., which is difficult to treat. Dye and textile industry: the wastewater produced by these industries usually contains large amounts of biodegradable organic matter and chromaticity. Electroplating and metallurgy: Waste water containing heavy metals and toxic substances is produced during electroplating and metallurgy.
3. Core technology of high-concentration wastewater treatment equipment High concentration wastewater treatment equipment, usually through physical or chemical methods to remove large particles, suspended matter in the wastewater, to create conditions for subsequent treatment. It will also use advanced oxidation technologies such as Fenton oxidation, ozone oxidation, through the production of strong oxidant to convert refractory organic matter into easily degradable substances. Use the metabolic action of microorganisms to remove organic matter in wastewater. For high-concentration wastewater, anaerobic and aerobic combined processes may be adopted to improve the treatment effect. The tic substances in wastewater can also be removed by physical methods through membrane separation technologies such as ultrafiltration and reverse osmosis. Through chemical precipitation, ion exchange, adsorption and other heavy metal treatment technology, used to remove heavy metal ions in wastewater. Therefore, for high concentration sewage treatment equipment, it is very important to ensure that the effluent reaches the standard, reasonably select the treatment process, strictly control the treatment process, strengthen the pretreatment, optimize the operation parameters and regular detection and evaluation. If problems are found, take timely measures to adjust.
Due to the particularity of its water quality, high concentration wastewater treatment has strict technical requirements for equipment. It needs to have good product technology, project experience, and the idea of adjusting measures to local conditions to ensure that the effluent of high concentration wastewater treatment equipment meets the standard. Jiading environmental protection is a senior factory in the sewage treatment industry for ten years, based in Jiangsu province, radiation to the whole country, facing overseas, has a strict product technology quality control team.
Post time: Mar-12-2024