Examination And Research About Biochemistry Technique Disposing High Concentration SO₄～(2+) TiO₂ Wastewater

In this discourse, we mostly study how the SRB dispose the wastewater which contains high consistency SO₄^2-.ASBR technics was applied in this experimentation. We researched the life property of SRB in anaerobic condition, the HRT of ASBR to dispose the acidity TiO₂, the most suitable growth temperature of SRB .At the same time, we researched the infection of COD/SO₄^2- ratio, the pH of wastewater and different experimentation temperature to the SO₄^2- deoxidization effect. At the same time, we researched the optimal function working procedure of ASBR.We acquire better results in this experimentation, the elimination ratios of simulation wastewater and TiO₂ achieve 91.7% and 88.3% respectively, the highest dimension load touches 1.10KgSO₄^2-/m³Â·d and 1.053KgSO₄^2-/m³Â·d. Wastewater can be let in the range of GB 3838-88, the disposal wastewater concentration less than 250mg/L. Using gas circulation to drive wastewater circulation is one strongpoint of this technology which can prevent H₂S poisoning SRB whisking the wastewater.Examination optimal function parameter: HRT=24h, COD/ SO₄^2-=2.4².8, optimal pH=7.1⁸.2, intermission whisking, T=35℃³7℃.The optimal function working procedures: filling 0.5h, reaction 6.0h, deposition 1.0h, venting 0.5h. The technics traits: easily gains granular sludge, runs with high loading, operates simply and so on.Analyzing and researching kinetics in the phase of disposal TiO₂ shows that linearity correlation coefficient is 0.9835. It is can be considered that the linearity correlation character is good.