Enhancement of Bioreactor Performance Using Acclimatised Seed Sludge in Anaerobic Treatment of Chicken Slaughterhouse Wastewater: Laboratory Achievement, Energy Recovery, and Its Commercial-Scale Potential

Autor: Mohammed Ali Musa, Tuan Nurfarhana Tuan Mohd Marzuki, Hasfalina Che Man, Nur Syakina Jamali, Syazwani Idrus, Abdul Malek Abdul Wahab, Sabrina Ng Muhamad Ng
Rok vydání: 2021
Předmět:
Zdroj: Animals : an Open Access Journal from MDPI
Animals, Vol 11, Iss 3313, p 3313 (2021)
Animals
Volume 11
Issue 11
ISSN: 2076-2615
DOI: 10.3390/ani11113313
Popis: Lack of good management practice of chicken slaughterhouse wastewater (CSWW) has caused pollution into water bodies. In this study, the potential of seed sludge acclimatised modified synthetic wastewater (MSWW) on bioreactor performance and energy recovery of CSWW treatment was investigated. Two sets of upflow anaerobic sludge blanket (UASB) reactors were employed. The seed sludge in UASB 2 was acclimatised with MSWW for 30 days. In UASB 1, no acclimatisation process was undertaken on seed sludge for control purposes. After the acclimatisation process of UASB 2, both reactors were supplied with CSWW under the same condition of organic loading rate (OLR = 0.5 to 6 gCOD/L/d) and mesophilic condition (37 °C). COD removal efficiencies of UASB 2 were >
80% all through the steady-state of the OLR applied. Meanwhile, a drastic decrease in overall performance was observed in UASB 1 when the OLR was increased to 3, 4, 5, and 6 gCOD/L/d. Energy recovery from laboratory scale and projected value from commercial-scale bioreactor were 0.056 kWh and 790.49 kWh per day, respectively. Preliminary design of an on-site commercial-scale anaerobic reactor was proposed at a capacity of 60 m3.
Databáze: OpenAIRE
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