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Study on potato starch wastewater pretreatment using flocculation

  • Xia Zhao*
  • , Yangli Zhao
  • , Zhonglin Chen
  • , Heming Luo
  • , Huixia Feng
  • , Feng Jiang
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Lanzhou University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, flocculation process was applied to the treatment of potato starch wastewater. The Influence of flocculent types, dosage of flocculants, pH, dosage of coagulant aid polyacrylamide (PAM) and sedimentation time on flocculation efficiency was studied, and principal factors of influence flocculation pretreatment of potato starch wastewater and the optimum flocculation conditions were determined by orthogonal experiment. On the optimum conditions which had the advantage of better treatment efficiency with chemical oxygen demand (COD) removal rate of 40.55%, the suitable pH(7) in favour of the following biological treatment, high yield of sludge of 1.59g/L wastewater which could be used as animal feed or fertilizer and increase economic benefits.

Original languageEnglish
Title of host publicationFrontiers of Green Building, Materials and Civil Engineering
Pages2644-2648
Number of pages5
DOIs
StatePublished - 2011
Event2011 International Conference on Green Building, Materials and Civil Engineering, GBMCE 2011 - Shangri-La, China
Duration: 22 Aug 201123 Aug 2011

Publication series

NameApplied Mechanics and Materials
Volume71-78
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Green Building, Materials and Civil Engineering, GBMCE 2011
Country/TerritoryChina
CityShangri-La
Period22/08/1123/08/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 2 - Zero Hunger
    SDG 2 Zero Hunger

Keywords

  • Flocculants
  • Flocculation process
  • Potato starch wastewater
  • Pretreatment efficiency

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