N-Phosphonomethyliminodiacetic acid was synthesized by using residues as raw materials containing the mixtures and by-products from process for dimethyl phosphite and GLY glyphosate.

• 制革工艺将原料皮变成革,属于典型的工业领域,在工艺处理过程中要考虑产生的固、液副产物对环境尤其是水和土壤的污染。