Long Jiang IP has built a central sewage treatment plant since 2008 which applied micro process technology combined physical chemical with a capacity of 5000m³/day . Treatment plant was issued Permit no. 2651/GP-BTNMT dated Nov 24^th, 2014 by the Ministry of Resources and Environment.

Currently, the sewage treatment plant is disposing wastewater from enterprises in IP. Waste water after treatment is achieved Level A under Vietnam Regulations QCVN40/2012/BTNMT with Kq = 1 and Kf = 0.9.