The combined process of coagulation-flocculation and membrane separations to treat wastewater from tofu industry

Luthfia Shofi Albi, Sutrasno Kartohardjono

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

1 Citation (Scopus)

Abstract

Wastewater from tofu industry needs an effective treatment in order to meet the water quality standards based on regulation of ministry of environment. This study carried out the treatment of wastewater from tofu industry using a combination of microfiltration (MF) and reverse osmosis (RO) processes. Coagulation-flocculation was conducted prior to MF to reduce the effect of fouling on membrane and improve its performance by removing the colloidal particles. Alum 300 ppm was used as the coagulant-agent for the coagulation-flocculation process. The wastewater feed has pH, total dissolved solid (TDS), total suspended solids (TSS), turbidity and chemical oxygen demand in the ranges of 4-5, 800-1500 mg/L, 800-1200 mg/L, 880-1100 FAU and 6000-8000 mg/L, respectively, which are far above the National Quality Standard. The produced water from the final treatment had the concentrations of TSS, turbidity, TDS and COD 0 mg/L, 0 FAU, 5 mg/L and 57.3 mg/L respectively, and this met the requirement from the National Environmental Quality Standard for the discharged wastewater.

Original languageEnglish
Title of host publicationRecent Progress on
Subtitle of host publicationEnergy, Communities and Cities - Proceedings of International Symposium on Sustainable and Clean Energy, ISSCE 2019: Quality in Research 2019
EditorsYuliusman Yuliusman, Cindy Dianita
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419896
DOIs
Publication statusPublished - 4 May 2020
Event16th International Conference on Quality in Research, QiR 2019 - 2019 International Symposium on Sustainable and Clean Energy, ISSCE 2019 - Padang, Indonesia
Duration: 22 Jul 201924 Jul 2019

Publication series

NameAIP Conference Proceedings
Volume2230
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference16th International Conference on Quality in Research, QiR 2019 - 2019 International Symposium on Sustainable and Clean Energy, ISSCE 2019
Country/TerritoryIndonesia
CityPadang
Period22/07/1924/07/19

Fingerprint

Dive into the research topics of 'The combined process of coagulation-flocculation and membrane separations to treat wastewater from tofu industry'. Together they form a unique fingerprint.

Cite this