Effect of magnesium addition to volatile fatty acids and particulate chemical oxygen demand in hydrolysis phase of anaerobic waste treatment

Firyal Tharifa, Khansa Luqyana Hapsari, Cindy Rianti Priadi, Heri Hermansyah

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

Abstract

Anaerobic Digestion (AD) is an alternative technology used for treating food waste. Sodium content in food waste with a concentration of > 3.100 mg/L has the potential to cause inhibition. Sodium inhibition can be controlled with magnesium. In steady state conditions, the control phase shows the average Chemical Oxygen Demand (COD) removal 94.2 ± 3.34%, Soluble Chemical Oxygen Demand (SCOD) 98 ± 1%, Particulate Chemical Oxygen Demand (PCOD) 94 ± 3.6%, and formation of Volatile Fatty Acids (VFA) 1,800 ± 200 mg/L and hydrolysis rate 6.92 ± 0.32 mg.PCOD/L/d. The addition of MgSO4 in the test phase showed a significant difference in the formation of VFA to 1,066 ± 57.7 mg/L. While the average allowance for COD, SCOD, and PCOD did not show a significant difference with a value of 84.7 ± 6.8% respectively; 96 ± 1%; 83.3 ± 7.3%. The hydrolysis rate in the test phase also did not show a significant difference to 6.24 ± 0.57 mg.PCOD/L/d.

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
CountryIndonesia
CityPadang
Period22/07/1924/07/19

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