What are the requirements for process selection for heavy metal wastewater treatment?
What are the requirements for process selection for heavy metal wastewater treatment? Author: With the development of industrial waste also increased faster, waste water containing heavy metals is also relatively fast development, now deal with waste water containing heavy metal craft There are many, different treatment process sewage will achieve different effects, then how should Choose a suitable heavy metal-containing wastewater treatment process, the following is a brief introduction for you to choose a suitable heavy metal-containing wastewater treatment process. 1. In accordance with scientific analysis methods, based on environmental quality benchmarks, and on the premise of ensuring water environmental quality, the environmental capacity of drainage receiving is used reasonably. According to the waste water quality and quantity of the collection area, the environmental capacity and utilization of the water body, ensure the target function of the water body planning and comprehensive utilization, and improve the environmental benefit. 2. Compared with technology and economy, prioritize the use of technologically advanced, economically reasonable, stable and reliable process technology to ensure that wastewater meets the discharge standard, and minimize construction investment and operating costs. According to the water quality and quantity, the environmental capacity and utilization of the receiving water body, combined with the actual situation, the treatment process should be selected according to local conditions. 3. The selected treatment process should ensure that the quality of the effluent meets the relevant national and local regulations and meets the requirements of the environmental impact assessment report. Actively and prudently adopt new technologies, new processes, new materials and new equipment that have proven to be effective in practice. 4. Emphasis on source control of wastewater to ensure the discharge of wastewater up to standards. Properly arrange the slag, sediment and sludge generated in the treatment process to avoid secondary pollution. 5. The general plan requires a smooth, reasonable and compact process, reduces land occupation, balances earthwork, considers flood control, and reserves long-term treatment plant land. 6. Carry out in-depth technical and economic analysis of the engineering system, and select the treatment technology with good effect, low investment, low energy consumption, less land occupation, convenient operation and management, and mature technology to provide a reliable basis for the operation and management system after the completion of the project.
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