This filter is made from activated clays and charcoal and removes fine insolublesoil and non-volatile residues, along with dyes from the solvent.
此过滤器是由激活的粘土和木炭，并移除罚款不溶性的土壤和非挥发性残留物，随着染料溶剂。
2
There are lots of microbes in soil, some of them could dissolve insoluble phosphorus that could not be utilized by plants and transform them into soluble phosphorus.
土壤中有大量的微生物存在，其中有一些微生物能够将土壤中的不溶性磷转化成可溶性磷。
3
W-SFCW system, which provides more interaction surfaces for wastewater to react with soil, oval stone and small-sized stone layers, showed higher chances to form insoluble phosphate than SFCW.