The first wastewater treatment plant expansion project started in September 2010, the first phase of the project (40,000m3 / d) to upgrade and the second phase of the expansion (40,000m3 / d), after the implementation of the final formation of the total sewage treatment scale of 80,000m3 / d, the effluent quality from the "municipal wastewater treatment plant pollutant discharge standards" (GB18918-2002) in the first B standard to a level of A standard. Specific construction content is:
(1) new 40,000m3/d scale of secondary biological treatment structures;
(2) new 80,000m3/d scale of depth treatment structures;
(3) in accordance with the requirements of the collection of pipeline network coverage, extension of part of the road pipeline network.