Comparative study on hydrogen production characteristics of pre-treated swine wastewater in ASBR process

SUN Jian; YANG Zhipeng; ZHANG Dongmei; ZHANG Ling; WANG Haoyu; ZHONG Jiaxing; WANG Xiaoling; DU Juli

doi:10.13205/j.hjgc.202606018

Volume 44 Issue 6

Jun. 2026

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2026 > 44(6): 176-182

SUN Jian, YANG Zhipeng, ZHANG Dongmei, ZHANG Ling, WANG Haoyu, ZHONG Jiaxing, WANG Xiaoling, DU Juli. Comparative study on hydrogen production characteristics of pre-treated swine wastewater in ASBR process[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(6): 176-182. doi: 10.13205/j.hjgc.202606018

Citation:

SUN Jian, YANG Zhipeng, ZHANG Dongmei, ZHANG Ling, WANG Haoyu, ZHONG Jiaxing, WANG Xiaoling, DU Juli. Comparative study on hydrogen production characteristics of pre-treated swine wastewater in ASBR process[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(6): 176-182. doi: 10.13205/j.hjgc.202606018

Citation:

SUN Jian, YANG Zhipeng, ZHANG Dongmei, ZHANG Ling, WANG Haoyu, ZHONG Jiaxing, WANG Xiaoling, DU Juli. Comparative study on hydrogen production characteristics of pre-treated swine wastewater in ASBR process[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(6): 176-182. doi: 10.13205/j.hjgc.202606018

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Comparative study on hydrogen production characteristics of pre-treated swine wastewater in ASBR process

doi: 10.13205/j.hjgc.202606018

1. Guangdong University of Petrochemical Technology, Maoming 525000, China;
2. Gaocheng Food Company, Gaozhou Food Enterprise Group, Maoming 525200, China

Received Date: 2025-09-25
Accepted Date: 2025-11-20
Rev Recd Date: 2025-10-23

Available Online: 2026-07-06

Abstract

Abstract

Swine wastewater is a type of high-concentration organic wastewater， and hydrogen production during anaerobic fermentation is an important pathway for its conversion into clean energy. A comparative study on hydrogen production characteristics was conducted using three anaerobic sequencing batch reactors （ASBRs） for raw wastewater， the supernatant after MAP precipitation for nitrogen and phosphorus recovery， and the same supernatant co-treated with sludge heat-treated at 75°C for 0.5 hours. Without adjusting the influent pH， the hydrogen production rate in the raw wastewater reactor remained below 0.50 mmol/（kg·d）. When the influent COD concentration was 1800 mg/L， the hydrogen production rates in the MAP-pretreated reactor and co-treated reactor reached 48.17， 71.44 mmol/（kg·d）， respectively. At an influent COD concentration of 2400 mg/L， the methane concentrations in the raw， MAP-pretreated， and co-treated reactors were 10.8%， 14.2%， and 9.1%， respectively， indicating that MAP pretreatment significantly enhanced both hydrogen and methane production. Subsequently， as the influent load increased， the methane concentration in the raw wastewater reactor rose to 14.6%. Under these conditions， the average COD removal efficiencies for the raw， MAP-pretreated， and co-treated reactors were 78.9%， 70.8%， and 52.5%， respectively. Under pH-adjusted conditions， this study demonstrated that all three reactors achieved peak hydrogen production at pH 4.0， with production rates reaching 0.10， 7.74， and 8.83 mol/（kg·d）， respectively. This study provides valuable insights into exploring hydrogen production from swine wastewater through anaerobic processes.
- ASBR process,
- swine wastewater,
- MAP pre-treatment,
- anaerobic biohydrogen production

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References(22)

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