The comprehensive wastewater treatment equipment of Yipu Yida clear laboratory strictly complies with the current national environmental protection technical standards and specifications, selects advanced, reasonable and reliable treatment process, and achieves simple operation, convenient management, small land occupation, low investment, low operation cost, and secondary pollution prevention and reduction on the premise of ensuring that the treatment discharge meets the standards. In order to improve the management level of the sewage station, the design idea of high automation and low labor intensity of the operators is adopted, high-quality accessories are selected reasonably, energy consumption is reduced, work efficiency and service life are improved, and cost is reduced.
1. Classification of laboratory wastewater
Laboratory wastewater has its own special properties, strong discontinuity, high harm, complex and variable composition. According to the properties of the main pollutants contained in the wastewater, it can be divided into two categories: laboratory organic and inorganic wastewater. Inorganic wastewater mainly contains heavy metals, heavy metal complexes, acid and alkali, sulfide, halogen ions and other inorganic ions. Organic wastewater contains organic solvents, organic acids, ethers, polychlorinated biphenyls, organic phosphorus compounds, phenols, petroleum and oil substances.
Different wastewater has different pollutant composition and different treatment methods and degrees. The treatment of laboratory wastewater is based on the principle of classified collection, on-site and timely in-situ treatment, simple operation, waste treatment and cost reduction.
The comprehensive waste water composition of the laboratory includes but is not limited to the following categories:
(1) Inorganic substances: heavy metal ions, pH value of acid and alkali, halogen ions and other non-metallic ions, etc;
a. Heavy metal ions: Mercury, cadmium, total chromium, hexavalent chromium, lead, manganese, silver, nickel, zinc, iron, cobalt, tin, magnesium, zinc, copper, aluminum, arsenic and other metal cations, as well as heavy metal ions (Cr2O7) 2 -, CuCN -, aucn -, ptcl6) 2 -, etc;
b. Nonmetallic ions: fluoric acid or fluoride, free cyanogen or cyanogen compound, complex ion compound, aso32 -, aso43 -, Hg +, Hg2 +, etc;
c. PH value of acid and alkali: nitric acid, hydrochloric acid, phosphoric acid, sulfuric acid, hydrogen peroxide, calcium chloride, etc;
(2) Organic compounds: organic solvents, detergents, surfactants, benzene, toluene, xylene, aniline, phenol, polychlorinated biphenyls, benzopyrene, phenols, formaldehyde, acetaldehyde, acrylonitrile, alkanes, olefins, hydrogen fluoride, petroleum, Oils and fats, methanol, aniline, polycyclic aromatic hydrocarbons, nitro compounds, nitrosamines, chlorobenzene, nitrobenzene, ethers, mixed hydrocarbons Class A, bingone, sugar, halohydrocarbon, protein, organophosphorus pesticide, etc;
(3) Organisms: pathogens, etc.; pathogens: bacteria, viruses, chlamydia, mycoplasma, spirochetes, fungi, Brucella, anthrax, etc.