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报导施用污泥和掺加石灰进行狗牙根盆裁对比试验。试验结果表明,掺加石灰提高微酸性土壤的pH值,可减少植物对重金属的吸收,降低植物中重金属的含量,从而寻求解决城市污水处理后污泥利用的途径。
Reported the use of sludge and lime mixed bermudagrass potting contrast test. The results showed that adding lime to increase the pH value of slightly acidic soils can reduce the absorption of heavy metals by plants and reduce the content of heavy metals in plants, so as to find a way to solve the sludge utilization after urban sewage treatment.