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Wynca passed the appraisal for utilization of organic phosphorus wastewaterqrcode

Oct. 30, 2012

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Oct. 30, 2012

Chinese pesticide company Wynca has announced that its high efficient utilization of organic phosphorus wastewater industrialization project was identified by CPCIF (China Petroleum and Chemical Industry Federation). Wynca is going to set a 200,000 t/y wastewater device and two sets of 10,000 t/y hot polymerization, phosphate product purification through using the new technology. It is estimated that profit of Yuan 616/t of glyphosate wastewater treatment is saved.

Global demand for glyphosate is about 500,000-600,000 t/y, with an annual growth of 10%. Preparation of one ton glyphosate through glycine produces 10-12 tons wastewater and 4.5 tons mother liquid, which contains 0.5 ton organic phosphorus, was used to sell as 10% glyphosate AS. In June last year, the MIIT (the Chinese Ministry of Industry and Information Technology) banned 10% glyphosate AS product due to the environment protection issues. Glyphosate mother liquid is very complicated and difficult recovery in the high volume (1.35 million t/y), if not completely solve the issue, there will be the Achilles heel for domestic manufacturers.

For glyphosate mother liquid recycling, Wynca Group has invested Yuan 80 million in development of technology of high efficient utilization of organic phosphorus wastewater from 2005.

Industrial technology includes high content of phosphorus recovery from wastewater and high efficient utilization. The company developed integration technology of oxidation - concentrated - directional transformation - phosphate purification for utilization of wastewater with high content of phosphorus. The waste conversion rate reaches to 96%-98%. The purified phosphate achieves industry product standards and the total comprehensive utilization rate of phosphorus resources exceeds 90%. Low phosphorus wastewater treatment integrated the technology of oxidation, micro-electrolysis, adsorption and chemical precipitation ensures the total phosphorus content of wastewater lower than 15 mg/L (15ppm), which can discharge after further biochemical treatment.

Source: AgroNews

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