Article
Environmental Sciences
Hongbo Liu, Lu Dong, Xuedong Zhang, Cheng Zhao, Mingze Shi, Yajie Li, He Liu
Summary: Thermal hydrolysis is an effective method to improve the bioconversion of organic matter during sludge anaerobic treatment. Liquid fermentation for volatile fatty acids (VFAs) production using hydrolysate as the substrate has been successfully developed. The concentration of organics in the hydrolysate cannot be arbitrarily increased, and excessive hydrolysis intensity may produce non-biodegradable organics. The choice of appropriate hydrolysis intensity is crucial for the performance of sludge liquid fermentation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Xiang Zou, Junguo He, Heliang Pang, Pengfei Zhang, Xinlei Pan, Yijie Zhong, Shengye Duan, Xinxin Cui, Xiaodong Xin, Jie Zhang
Summary: The synergistic effect of protease and lysozyme on enhancing anaerobic fermentation efficiency and volatile fatty acids recovery was investigated. Asynchronous dosed enzyme cocktail pretreatment was proven to be a better strategy for solubilization and hydrolysis processes, leading to increased VFAs production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Luisa Niero, Fernando Morgan-Sagastume, Anders Lagerkvist
Summary: The study demonstrated the impact of temperature, pH, and retention time on the acidogenic fermentation of sewage sludge with wood fly ash added. Higher temperatures and adjusted pH favored hydrolysis, while fermentation producing organic acids was faster at lower temperatures.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Mei Zou, Mengyu Yin, Yayi Yuan, Dongbo Wang, Weiping Xiong, Xiao Yang, Yaoyu Zhou, Hongbo Chen
Summary: Triclosan promotes volatile fatty acid accumulation in waste activated sludge anaerobic fermentation, accelerating acid production and enhancing key enzyme activity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Xinlei Pan, Junfeng Li, Ruining He, Yu Tian, Heliang Pang
Summary: This study proposed a simplified operation mode, which improved anaerobic fermentation efficiency and organic matter recovery rate by shortening the CER residence time, reducing engineering costs and footprint.
Article
Environmental Sciences
Xinlei Pan, Junfeng Li, Ruining He, Yu Tian, Heliang Pang
Summary: By shortening the residence period of cation exchange resin (CER) to 1 day, higher sludge solubilization and hydrolysis rates can be achieved, leading to increased production of short-chain fatty acids (SCFAs). The modified operation pattern with shortened CER residence period (1 day) can achieve similar effects as the conventional operation pattern, while reducing CER usage, alleviating CER pollution and increasing operation convenience.
Article
Engineering, Multidisciplinary
Jia-jin Liang, Bing Li, Lei Wen, Ruo-hong Li, Xiao-yan Li
Summary: This study developed a three-phase innovative strategy for wastewater sludge treatment, including thermal hydrolysis, fungal fermentation, and anaerobic digestion. Increasing temperature during thermal hydrolysis improved sludge reduction and organic release efficiencies significantly. Fungal fermentation converted waste organics to valuable fiber materials, producing dense and strong paper sheets.
Article
Engineering, Environmental
G. K. Veluswamy, K. Shah, A. S. Ball, A. J. Guwy, R. M. Dinsdale
Summary: There are concerns over the long-term sustainability of anaerobic digestion for producing methane, while the production of VFAs as a high value product offers promising opportunities for future wastewater treatment plants.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2021)
Article
Engineering, Environmental
R. Bevilacqua, M. Mauricio-Iglesias, S. Balboa, J. M. Lema, M. Carballa
Summary: This study investigates the influence of sugar-to-protein (STP) ratio on anaerobic cofermentation outcomes, finding that glucose had no effect on casein conversion as long as the STP ratio was ≤1, but promoted the production of fatty acids. However, an STP ratio >1 inhibited amino acid consumption and reduced volatile fatty acid production.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Environmental Sciences
Xing Fan, Shuohui Shi, Hong Lin, Yongqiu Xia, Xuejie He, Jian Zhou
Summary: The study investigated the effects of zero valent iron (ZVI) and magnetite (Mag.) on the quality of hydrolysis-acidification effluent. It was found that ZVI effectively alleviated high temperature and strong alkali stress and improved the effluent VFAs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
Mengge Tang, Yanxin Wu, Xingning Zeng, Xiao Yang, Dongbo Wang, Hongbo Chen
Summary: This study clarifies the promoting effect of residual antibiotic chlortetracycline on the anaerobic fermentation of waste activated sludge to produce volatile fatty acids. Mechanistically, the study shows that the antibiotic enhances VFA production by prompting the secretion of extracellular polymeric substances and stimulating acidification, while inhibiting methanogenesis. These findings provide new insights for resource recovery from WAS containing chlortetracycline.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Xiupeng Jiang, Yuanyuan Yan, Leiyu Feng, Feng Wang, Yingqing Guo, Xianzhong Zhang, Zhenguang Zhang
Summary: The research found that BPA can promote the accumulation of VFAs in anaerobic fermentation, increasing the production of VFAs and acetic acid. BPA reduces the microorganisms that consume VFAs, increases those that produce VFAs, and enhances the gene expression of enzymes related to certain metabolic pathways.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Qinglian Wu, Heshan Zheng, Ying Chen, Min Liu, Xian Bao, Wanqian Guo
Summary: The study found that using alkylethoxyglucoside can significantly enhance the production of volatile fatty acids from waste activated sludge, and the degradation of AEG contributes to a certain extent to the total production, with AEG primarily promoting substrate hydrolysis and acidification by reducing surface charge.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Yanyan Ding, Boran Wu, Ying Xu, Zhigang Liu, Xiaohu Dai
Summary: This study proposed a method of anaerobic fermentation combined with acidic cation exchange resin pretreatment to improve phosphorus recovery efficiency in waste activated sludge. The results showed that this method can increase the recoverable phosphorus content and analyzed phosphorus transformation from a whole-process perspective, revealing the limiting factors in phosphorus release. Furthermore, this method also increased the production of volatile fatty acids and sludge hydrolysis efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Hatice Yesil, Rahim Molaey, Baris Calli, Adile Evren Tugtas
Summary: This study found that a combination of ultrasonication pretreatment and alkaline fermentation can achieve high hydrolysis rate, metal leaching rate, and reduced bioavailability of potentially toxic heavy metals in sewage sludge. The supported liquid membrane recovery method can effectively recover metals from bioleaching effluent.
Article
Environmental Sciences
Ling Wang, Hongbo Liu, Wenduo Zhang, Tiantian Yu, Qiu Jin, Bo Fu, He Liu
Article
Biotechnology & Applied Microbiology
Lei Yu, Wenduo Zhang, He Liu, Ganghui Wang, Hongbo Liu
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2018)
Article
Environmental Sciences
Hongbo Liu, Ling Wang, Bo Yin, Bo Fu, He Liu
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2018)
Article
Engineering, Environmental
Yan Zhang, Peng Han, He Liu, Lihui Zhang, Hongbo Liu, Bo Fu
WATER SCIENCE AND TECHNOLOGY
(2018)
Article
Agricultural Engineering
Yan Zhang, Lihui Zhang, He Liu, Linlin Gong, Qianqian Jiang, Hongbo Liu, Bo Fu
BIORESOURCE TECHNOLOGY
(2019)
Article
Environmental Sciences
Luyi Zou, Xiaoyue Zhang, Mingying Shao, Ruirui Sun, Yuting Zhu, Binbin Zou, Zhenxing Huang, He Liu, Yue Teng
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Engineering, Environmental
Hongbo Liu, Ling Wang, Xuedong Zhang, Bo Fu, He Liu, Yajie Li, Xiaoyou Lu
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Agricultural Engineering
He Liu, Linlin Gong, Yan Zhang, Qianqian Jiang, Minhua Cui, Jie Zhang, Bo Fu, Hongbo Liu
BIORESOURCE TECHNOLOGY
(2019)
Article
Microbiology
Bo Fu, Xin Jin, Ralf Conrad, Hongbo Liu, He Liu
FRONTIERS IN MICROBIOLOGY
(2019)
Article
Environmental Sciences
Yan-Qin Yang, Min-Hua Cui, Yi-Gang Ren, Jian-Chao Guo, Zhi-Yong Zheng, He Liu
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2020)
Article
Environmental Sciences
Yan-Qin Yang, Min-Hua Cui, Jian-Chao Guo, Jing-Jing Du, Zhi-Yong Zheng, He Liu
Summary: Co-pyrolysis of rice husk and sewage sludge resulted in biochars with lower yield but higher carbon content, and reduced relative contents of lead and cadmium. This process transformed bioavailable heavy metals into stable speciation, reducing the environmental risk assessment codes of lead and cadmium by 1-2 grades. Co-pyrolysis technology provides a feasible method for the safe disposal of heavy metal-contaminated sewage sludge.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Wenhao Liu, Zhiyong Zheng, Fuxin Sun, He Liu, Min-Hua Cui, Yuan Ye, Yan Zhang
BIOCHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Chemical
Xiang Li, Yuqi Chen, Zhiyong Zheng, Minjie Gao, Zifan Wang, Kaining Zhang, He Liu, Xiaobei Zhan
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2020)
Article
Green & Sustainable Science & Technology
Wenhao Liu, Zhiyong Zheng, Fuxin Sun, Maodong Miao, Min-Hua Cui, Hongbo Liu, Huimin Zhang, Cheng Zhang, Zhijie Hu, He Liu
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Engineering, Environmental
Yan Zhang, Qianqian Jiang, Linlin Gong, He Liu, Minhua Cui, Jie Zhang
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Biotechnology & Applied Microbiology
Yiran Qu, Innocent Bekard, Ben Hunt, Jamie Black, Louis Fabri, Sally L. Gras, Sandra. E. Kentish
Summary: This study compares the performance of a nanofiber device and a resin column for antibody capture. The nanofiber device has a larger housing volume and lower binding capacity, but comparable eluate purity to the resin column. It shows high stability, can be used for multiple cycles, and maintains consistent eluate quality when scaled up. The use of a single nanofiber device can significantly reduce costs compared to a resin column, especially when the number of batches is limited.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Brandon Moore, Christos Georgakis, Chris Antoniou, Sarwat Khattak
Summary: Fed-batch cell culture processes are commonly used in biomanufacturing due to their simplicity and applicability in cGMP environments. However, the challenge lies in the changing physiochemical conditions within the bioreactor as the cell density changes. Traditional response surface models (RSMs) are commonly used for optimization but are limited by their use of time-invariant factors. Dynamic RSM (DRSM) models can predict the time-dependent impact of process inputs, allowing for optimization of process operations that change over time.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Lin Li, Yunfan Bai, Chuhua Qi, Yile Du, Xiaoxiao Ma, Yutong Li, Pingping Wu, Shuangli Chen, Sijing Zhang
Summary: A succinic anhydride-modified apple pomace (SAMAP) was synthesized to address environmental issues caused by the accumulation of apple pomace and effectively treat heavy metal ions. SAMAP exhibited high adsorption capacity for Cu(II) and Pb(II), suggesting its potential application in wastewater treatment.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Peter Satzer
Summary: Water for injection (WFI) production in the biopharmaceutical industry consumes excessive amounts of water and energy. Recycling buffers can potentially save up to 90% of resources, but achieving the full theoretical potential is impossible when a risk-aware design is used. Universal risk-based assessment is important for regulatory authorities to consider the implementation of such a strategy.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Gaoya Sun, Lingkai Jin, Guangxue Wang, Xiaoge Wang, Jin Huang
Summary: In this study, heterologous expression and homologous overexpression of ABC transporter proteins AatA and MdlB were found to improve butyric acid production in C. tyrobutyricum. The overexpression of these proteins upregulated the expression levels of key enzymes in the acetate synthesis pathway and promoted the synthesis and secretion of acetic acid. Additionally, the increase in ATPase activity facilitated sugar utilization, induced extracellular secretion of acetate, and shortened fermentation periods.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Taiki Okamura, Rina Aritomi, Takuya Matsumoto, Ryosuke Yamada, Hidehiko Hirakawa, Hiroyasu Ogino
Summary: In this study, proline was introduced to improve the stability of putidaredoxin reductase (PdR) in the Pseudomonas putida cytochrome P450 system. It was found that PdR_T221P had a longer half-life at high temperatures compared to wild-type PdR, but a shorter half-life in the presence of methanol. Molecular dynamics simulations supported these findings.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Yuying Hu, Xiaofan Wang, Shihao Zhang, Zimu Liu, Tengfang Hu, Xin Wang, Xiaoming Peng, Hongling Dai, Jing Wu, Fengping Hu
Summary: This study investigates the effect of iron-carbon micro-electrolysis (ICME) materials on high-solid anaerobic digestion (HSAD). The results show that ICME materials promote methane production in HSAD by increasing the attachment area of microorganisms and facilitating symbiotic metabolism of certain bacterial species. This study provides new insights into microbial mechanisms and enhances our understanding of ICME material enhancement in HSAD.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Jibao Liu, Yufeng Xu, Yuansong Wei
Summary: This study investigated the role of sludge rheology in anaerobic digestion (AD) and found that rheological properties increased with the increase of solid content, resulting in a negative effect on methane production. An extended ADM1 model revealed that enhanced sludge rheological properties increased mass diffusion resistance and reduced uptake rate of acetate.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Xiaoyan Liu, Zongze Chen, Dewen Kong, Xinying Zhang, Chuanhua Wang, Yongqi Wang
Summary: This study explored the role of intracellular and extracellular enzymes of Acinetobacter baumannii and Talaromyces sp. in the degradation of crude oil. The extracellular enzymes of Talaromyces sp. were more effective in degrading n-alkanes, while those of Acinetobacter baumannii had a better effect on aromatic hydrocarbons. The degradation enzyme systems of both bacteria and fungi complemented each other, improving the overall degradation ability.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Jing Dong, Lingli Xu, Yuxiang Liu, Li Ren, Ke Yuan
Summary: The utilization of biochar-immobilized microorganisms is an effective method for eliminating phenol from water. The high susceptibility of bacteria to environmental factors is a challenge for practical implementation. In this study, biochar was used to reduce microbial susceptibility and enhance phenol removal. The addition of biochar altered the dominant species of phenol-degrading bacteria and response surface analysis indicated the significant influence of biochar pyrolysis temperature and experimental temperature on phenol removal rate.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Zibin Pan, Mengying Liu, Zuliang Chen
Summary: This study successfully removed metalloids and heavy metals from acid mine drainage (AMD) using bio-synthesized Fe/Cu nanoparticles (Fe/Cu NPs). The Fe/Cu NPs showed high removal capacities and the presence of organic substances contributed to their stability.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Guangbing Liu, Han Zhang, Jincan Huang, Lu Zhang, Teng Zhang, Xuemin Yu, Weijing Liu, Chunkai Huang
Summary: This study investigated the effect of Fenton pre-treatment on the treatment efficiency of printing and dyeing wastewater (PDW) using two anaerobic/aerobic-membrane bioreactors (A/O-MBRs). The results showed that Fenton pre-treatment significantly improved the removal efficiency of COD and AOX in PDW, and reduced membrane fouling. The Shannon indices and metagenomics analysis indicated that the microbial diversity in anaerobic flocs was higher than that in aerobic flocs, and EC3.1.1.45 and pcaI were identified as key functional genes.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Lidia Borgosz, Duygu Dikicioglu
Summary: The Industrial Internet of Things (IIoT) is a system that connects devices and provides real-time insight into industrial processes. However, the complexity and regulatory requirements of the biomanufacturing sector make it challenging to implement IIoT. There is a need for universal solutions to overcome this challenge and advance the field of biomanufacturing.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Yajie Li, Weikang Kong, Yuyao Zhang, Huarui Zhou, Hongbo Liu, Salma Tabassum
Summary: In this study, the iron-carbon multi-micro electric field coupling anaerobic co-digestion technique was used to treat coal gasification wastewater (CGW). The experimental results showed that under optimal operating conditions, this technique can significantly reduce the toxicity of the wastewater and achieve high removal efficiencies. Additionally, the analysis of microbial communities revealed that the coupling system promotes direct interspecies electron transfer.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Biotechnology & Applied Microbiology
Aparecido Nivaldo Modenes, Debora Gozzi Fernandes, Daniela Estelita Goes Trigueros, Matheus Guilherme Amador, Fernando Rodolfo Espinoza-Quinones, Taysa de Souza Braniz, Adilson Ricken Schuelter, Glacy Jaqueline da Silva, Lucimar Pereira Bonett
Summary: This study aimed to systematically remove organic pollutants from raw dairy wastewater with high concentrations of COD, TOC, and TN using Poterioochromonas malhamensis algae strains. The results showed that the biomass yield rate using FP-PBRs was 10% higher than tubular PBRs, and the organic pollution in wastewater was significantly reduced with a decrease of about 98% in COD, 95% in TN, and 92% in TOC.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
