The removal of phosphorus from wastewater consists of biological removal method and compelled chemicalremoval method.
污水的除磷有生物法和药剂强制去除法两大类。
2
Technological conditions of chemicalremoval of iron from siliceous earth under the function of microwave are described.
介绍了微波作用下硅藻土化学除铁的工艺条件。
3
Development of large collapse structures in karstic terrain requires an interaction between mechanical instability and chemicalremoval of collapsed rock.