January, 12, Mr. Wu Zongwen, Senior Technical Consultant of Tongwei Co., Ltd. received the award of Sannong(concerning Agriculture, Farmers, Rural Areas) figure of the Year presented by CCTV with its invention of Deep ponds for low pollution discharge.

Mr. Wu’s project focuses on pro-environment low-carbon aquaculture, as well as research on fishery engineering equipment. He mainly assumes research and cooperation assignments of state and international levels with its major findings:

To avoid endogenous and exogenous pollution, and achieve virtuous circle of farming water body, the water-saving pro-environment farming model is established: ’Deep ponds for low pollution discharge’", integrating the techniques of solid-liquid separation, co-existence of fish and vegetables, artificial wetland purification, seepage-proofing thin film, 5-in-1 apparatus, and integrated aeration.

Mr. Wu creatively designed a pro-environment pond system with low pollution discharge, combining deep pond(3-5 m),seepage-proofing thin film, silt-water separation pond, solid-liquid separation pond, artificial wetland, as well as co-existence of fish and vegetables. The system discharges pollution every 3-15 days/time, and can save over 80% energy and labor consumption on silt treatment. The result of the trial showed, the income from an area of 30 mu (about 19,980sq.m.) exceeded RMB￥400,000, with an averaged income of over RMB￥10,000. The sale proceeds of loach fries farming/mu exceeded 50,000 from February – May. Additionally, the comparative experiment showed, the fish pond using bottom blowdown has a faster growth rate and lower disease incidence rate. The expected proceeds could reach RMB10,000/mu and above.