The company's sewage source management includes the production area to carry out clean sewage diversion, reduce the amount of sewage; realize the gas production process, desulfurization process recycling water closed loop; methanol residual liquid back to the gas production jacket to produce steam; urea resolution liquid back to the gas production jacket to produce steam; compression, synthesis of recycled water closed loop.
1, the production area for clean sewage diversion, reduce the amount of sewage
Wastewater diversion will be all the wastewater mixed and then processed, often is not a good method, must be diverted. The purpose of diversion is to be part of the wastewater is reused, thereby reducing emissions.
2, the realization of gas-making process, desulfurization process circulating water closed loop
Desulfurization, decarbonization circulating water closed loop: desulfurization circulating water contains cyanide, sulfur, etc., the establishment of a micro-vortex plate clarifier, to reduce the suspended solids and turbidity, high concentration of water into the gas-making water circulating water system for the concentration of the treatment of the slag produced by the slag blended into the coal slurry as the "three-waste mixed combustion boiler The slag produced is mixed with coal sludge as the fuel of "three-waste mixed combustion boiler". Supplementary water is replaced by treated water.
3, methanol residual liquid back to the gas jacket production of steam
Methanol residual liquid in the main pollutants are wax oil and COD, the treatment of commonly used treatment methods are: an aerobic biochemical treatment, the second for the extraction method, the third for the direct reuse of the jacket method, the fourth for the discharge of non-treated or discharged into the gas cycle water and then discharged.
4, urea resolution liquid back to the gas jacket steam production
Urea resolution liquid contains a large amount of NH3-N and urea, is the main source of NH3-N sewage fertilizer plant, with the help of catalysts and special equipment, the use of adaptation to deepen hydrolysis treatment of urea resolution liquid effluent of the new process.
5, compression, synthesis of recycled water closed loop
Because of the compression and synthesis of recycled water quality is better, the implementation of a separate closed loop can keep the water quality clean.