例如业界一家知名业者清理环境时，采用自行研发的专利化学处理流程，设於美国纽约的Sevenson Environmental [...] Services公司可移除或处理多种重金属污染，包括铅、砷 、钡、镉、铬、铜、氰化物、镍、硒、硫化物、锌等。 thisbigcity.net | New York-based Sevenson Environmental Services has removed or [...] treated contamination on heavy metals [...] like lead , arsenic,barium,cadmium, chromium, [...]copper, cyanide, nickel, selenium, sulfide, and zinc. thisbigcity.net |