Sludge in the development of rapid industrialization production today, the full and effective use of resources the best way to cycle development, the sludge contains nitrogen that plants need phosphorus and potassium have a positive effect on plant growth, however, sludge also contain toxic substanc

Rapid industrialization in the development of production today, the mud, and it is full and effective use of resources for development cycle, the best way in sewage sludge containing plants need nitrogen, phosphorus, and potassium to the growth of plants, but there is a positive role in sludge conta

In industrialization fast production development today, the sludge full effective use, is carries on the cyclic development to the resources the best way, in the sludge includes the nitrogen, the phosphorus, the potassium fertilizer which the plant needs to plant's growth has the positive role, howe

In industrialized fast production development of today, sludge of full effective uses, is on resources for loop development of best way, sludge in the contains plant by needs of nitrogen, and phosphorus, and potash on plant of growth has active role, however sludge in the while contains heavy metal,

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