Researching Waste Water In The Phosphate Gypsum Place Retrieving And Conveying Long Distance

Development cyclical economy is a important route of reduce resource friendly environment and lasting department .It is a plan strategic objective of 11.5 nation The project conveying matter is acidity waste water P-0.66%(PO₄^3-) F^----0.35%(HF) ,PH=1.8-2.2 temperate(0---30℃), Incistinct<1%, and it is very corrosive , it conveyers distance about 45. 6km about 470n Height. it pass though grotto, bridge, river, highway and field . the project constructs very difficult. main pipeline utilizes America union company that produces metal-plastics tube .pump' s passageway does JIANG SU province SUOU RE Special type alloy steel plant that produces alloy steel material, the end pipeline uses Thick plastics (HDPE) that is about 38mm,the pump uses America 6x(?)DMX. 7 . the project put into practice three strengthen pressure . each pump station carry out PLC automatic control . valve description uses SHANG DONG province SHENG BANG company 's compound technic , when the project builds, it will have cut down expenses 6038000ï¿¥, and costprice31960000ï¿¥,average profit 28420000ï¿¥each year. Investment profit about 20.98% .and it will have reduced phosphate 81.9t/a, F^- 25.1t/a to drain .acidity waste water's draining is zero basic .it will have reduced pollution pressure of lower reaches and requirements purification of water acidity waste water taking the place of sulphuric acid is regarded as condiment .that realizes real cycle and is a advanced mineral selection technology that is opened up first in nation to save resources and effective solved draining question in making phosphate fertilizer's waste water .it will achieve good model result to department cyclical economic in great mine combing fertilize enterprise.