From Contaminated to Clean: The 杭州某场地化学淋洗修复 Soil Washing Story
How Desen Environmental solved chemical washing remediation contamination at 杭州某场地化学淋洗修复 — reducing soil waste by 90% through on-site soil washing at 10方/小时.
The Problem
The 杭州某场地化学淋洗修复 site faced a serious environmental challenge: soil heavily contaminated with chemical washing remediation. Traditional dig-and-haul approaches would have been prohibitively expensive and unsustainable, with thousands of tons destined for landfill. 2018年
The Solution
Desen Environmental deployed its modular soil washing plant at 10方/小时 throughput. The wet separation process isolates contaminants into a small-volume filter cake while recovering clean sand and gravel for on-site reuse — transforming a liability into a resource.
How It Works — In Simple Terms
- Feed & Screen — Contaminated soil enters the system; oversized debris is removed
- Scrub — A rotating drum washer uses mechanical friction and water to detach contaminants from soil particles
- Separate — Hydrocyclones split the slurry: clean coarse sand/gravel sinks, contaminated fine silt floats
- Dewater — Filter press squeezes the contaminated sludge into dry cake (small volume, easy disposal)
- Recycle — Process water is treated and reused; clean aggregates return to site
Results
- Contaminated soil volume reduced by over 90%
- Recovered aggregates reused on-site, eliminating virgin material costs
- No off-site hauling of bulk contaminated soil
- Project completed on schedule with full regulatory compliance
About Desen Environmental
Zhengzhou Desen Environmental Technology Co., Ltd. is a National High-Tech Enterprise headquartered in Zhengzhou High-Tech Zone, Henan, China. With over 30 years of manufacturing heritage and a dedicated focus on environmental equipment since 2010, Desen has delivered 1,000+ projects across 100+ countries, serving 385+ renowned clients with a >98% satisfaction rate. R&D partnerships include Zhengzhou University, Henan University of Technology, and the Chinese Academy of Geological Sciences, plus technology alliances with leading environmental enterprises from Germany and Finland.
Phone: +86-371-61937711 | Web: www.materialwashing.com
