Construction project of wastewater treatment plant for Nam Thang Long urban area with capacity of 18,000 m3 / day and night, M&E part (phase 1) 4,500 m3 / day and night, construction part (phase 1) 9,000 m3 / day in Xuan Dinh Ward, Bac Tu Liem District, Hanoi by Ecoba Technology Environment Co., Ltd is the general contractor of design and construction.