How to select equipment for ex-situ leaching and restoration of contaminated soil?
Ex-situ washing remediation of contaminated soil is a method of excavating contaminated soil and performing washing treatment on-site or on special equipment away from the site to dissolve or separate organic matter or heavy metals and other pollutants in the soil, and then clean the soil. Backfill
Ex-situ washing remediation of contaminated soil is a method of excavating contaminated soil and performing washing treatment on-site or on special equipment away from the site to dissolve or separate organic matter or heavy metals and other pollutants in the soil, and then clean the soil. Backfill or exploit techniques. This technology has the advantages of good remediation effect, fast remediation speed and low remediation cost, and is suitable for remediation of various types and degrees of soil pollution.
Desen soil washing and restoration equipment is an important condition and guarantee for the implementation of ectopic washing and restoration technology. It consists of modules such as feeding, scrubbing, multi-stage screening, enhanced washing, cyclone dehydration, concentration and filtration, and water treatment. It consists of fast installation, flexible transition, remote monitoring and other functions. So, how to select the equipment for ex-situ washing and restoration of contaminated soil?
Ex-situ washing and restoration equipment for contaminated soil should adopt automated, information-based, modular and energy-saving designs, and key process parameters should be automatically obtained. Equipment, materials, devices, etc. should comply with relevant national documents, and have product certificates and product performance test reports. Main materials should have on-site re-inspection reports. The rinsing equipment, pipelines and other auxiliary accessories should be corrosion-resistant and operate continuously for a long time under the acid and alkali conditions of the system design. When pipelines transport mud, the turning radius of the elbow should not be less than 5 times the pipe diameter. The selection of the pump should be determined based on the characteristics of the medium it transports and the purpose of the pump, and should comply with the following regulations:
(1) The adjustment range of the clean water pump flow rate should be able to meet the requirements for changes in water volume for the specified purpose;
(2) The working conditions of the mud pump should be able to meet the requirements for changes in mud concentration and sand content during the washing process;
(3) Screw pumps should be used to transport the mud from the mud concentration section to the mud-water separation section, and centrifugal pumps or screw pumps should be used in other sections;
(4) If there are metering requirements in pharmaceutical preparation units, metering pumps should be used;
(5) For pumps transporting slurry containing washing agents, the flow-passing part should be made of high-silicon cast iron nickel-chromium alloy, special alloy steel and other corrosion-resistant and wear-resistant metal materials;
(6) The selected pump should be able to maintain operation in the high efficiency zone for a long time.
In order to select the appropriate soil remediation equipment, it is necessary to comprehensively consider various factors according to the specific situation and select the optimal solution to achieve the best results and the lowest cost. As a professional environmental remediation service provider, Desen Environment has many years of experience in the design, manufacturing, installation, operation and maintenance of contaminated soil ex-situ washing and restoration equipment, and can provide you with the most suitable contaminated soil washing and restoration equipment and The best quality service, you are welcome to contact us and let us contribute to environmental protection together.
