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Successful River Restoration as the 2020 Restoration Targets for the Ammonia-Nitrogen Pollution of the Xinhuwei River and Beigang River have been achieved

 The County’s Xinhuwei River Basin and Beigang River Basin are two of the seven major river restoration projects for the Environmental Protection Agency as they feature are 290 stock farms, and the stock wastewater is one of the primary sources of pollution (ammonia and nitrogen pollution each account for 68.4% and 39.9%). Both rivers are suffering from this year’s drought, resulting in insufficient base flow as the County still achieved its 2020 restoration targets for the two rivers. The pollution levels are also falling every year, which is proof of the Bureau’s effectiveness in actively promoting resource recovery policies for livestock waste.  The Beigang River Basin is a key river for the Environmental Protection Bureau as its pollution levels have declined from 46.1% in 2014 to 19.3% in 2020, and the Tuku Bridge is one of the key monitoring stations for the river’s water quality. The pollution level of the river went from severely polluted to moderately polluted, and improvements on the indicator pollutant “ammonia-nitrogen” have been the most significant. The Fengqiao Monitoring Station at Xinhuwei River saw the river pollution indicator in 2020 was lower than the average values of the past three years. Overall, the pollution levels for the County’s rivers have seen improvement.  The County’s Environmental Protection Bureau has been continuously promoting resource recovery policies for livestock waste since 2015, and the biogas slurry/residue after undergoing wastewater treatment is used as fertilizer for farmlands. Meanwhile, inspection and control measures are put in place to enhance policing wastewater discharged from stock farms. Statistics have shown so far that 96 stock farms in the Xinhuwei River Basin and Beigang River Basin have obtained resource recovery permits for livestock waste as it is estimated that livestock wastewater discharged into rivers can be reduced by 755,000 metric tons each year, and 137.9 metric tons of ammonia-nitrogen can be reduced each year.  There are many stock farms and farmers upstream of the Tuku Bridge Monitoring Station, and farmers have joined in on the resource recovery policies for livestock waste. A total of 25 of the 48 stock businesses have applied for resource recovery, which goes to show that the promotion of resource recovery for livestock waste has a significant impact on improving river pollution. The county will continue to actively promote matters related to resource recovery for livestock waste while having hopes that farmers can use fewer chemical fertilizers, stock businesses can reduce the amount of discharged wastewater, and businesses can invest in stock farming by adding biogas power generation facilities to obtain carbon credit. This creates a circular economy that is aimed at achieving the goal of “fertilizing farmlands and cleaning the waters.” Director Chang stated that the Environmental Protection Agency will continue to promote resource recovery policies for livestock waste in 2021, expects 70 more stock farms to apply for the use of biogas slurry/residue, and 16 more plants to use discharged water to irrigate plants while 5 irrigation vehicle fleets will be established to assist in transportation operations. If stock farms and companies have already obtained biogas/slurry fertilization plans and have needs for biogas irrigation trucks, farmland storage tanks, irrigation equipment requirements or are willing to cooperate, they can contact the Environmental Protection Agency to make inquiries.

UPDATE:2021-06-29 17:57:00
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