Study on Environmental Materials with Treatment of Sweet Potato Starch Wastewater by Hydrolysis Acidification Sedimentation Process

Xia Tian; Yan Xi Shi; Guo Lin Lin; Qing Zhu Zheng

doi:10.4028/www.scientific.net/AMR.703.49

Paper Titles

Study on Environmental Materials with Treatment of Sweet Potato Starch Wastewater by Coagulation Precipitation Method
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Study on the Effect of Spinning Conditions on Performance Parameter of Hollow-Fiber Ultrafiltration Membrane Filament
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Shock-Induced Chemical Reaction between Iron and Enstatite
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Study on Chemical Materials with Design of Chemical Molecular Structure Images Identification System Based on VC++ and MATLAB
p.45

Study on Environmental Materials with Treatment of Sweet Potato Starch Wastewater by Hydrolysis Acidification Sedimentation Process
p.49

Effect of TiO₂ Concentration on Structure and Performance of Polysulfone Hollow-Fiber Ultrafiltration Membrane
p.53

Characterization of Ga Co-Doping mc-Si Ingot Made of Solar-Grade Silicon Purified by Metallurgical Route
p.58

Study on Semiconductor Materials with Interaction of Beta Radiation with GaN
p.63

First-Principles Study on Structural and Electronic Properties of the Armchair GaN Nanoribbons
p.67

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Study on Environmental Materials with Treatment of Sweet Potato Starch Wastewater by Hydrolysis Acidification Sedimentation Process

Abstract:

This study aimed at the application conditions of environmental materials in sweet potato starch wastewater by hydrolysis acidification process. The removal rates of COD and soluble protein were investigated to find suitable natural setting time, the quantity of acidic steeping liquor and pH. The results showed that traditional fermentation not only consumes time but also scarcely removal efficiency in short time. 40% acidic steeping liquor was added as an optimum dosage for effective treatment. In addition, the effort of pH (3.0-9.0) on the hydrolysis acidification of wastewater was investigated. The removal rates of COD and soluble protein reached 26.9% and 76.3% respectively at pH4.0. Therefore, pH was adjusted to isoelectric point that can effectively reduce the burden of subsequent wastewater treatment.