Txij lub Plaub Hlis 20 txog rau 21, 2021, thawj Fujian Provincial Environmental Sanitation thiab Clean Technology Equipment Exhibition yuav muaj nyob rau Longyan. Tsoom fwv cov thawj coj, cov kws tshaj lij, cov kws tshawb fawb thiab cov neeg sawv cev ua lag luam tau sib sau ua ke los tham txog cov teeb meem kub tam sim no ntawm kev lag luam ib puag ncig. Nyob rau hauv no exhibition, jiarong tshuab nthuav qhia cov cuab yeej tsav, hloov chaw nres tsheb leachate kho tshuab, landfill leachate ZLD kho tshuab.