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Tracking antibiotic resistance gene transfer at all seasons from swine waste to receiving environments
Ecotoxicol Environ Saf. 2021 May 18;219:112335. doi: 10.1016/j.ecoenv.2021.112335. Online ahead of print.ABSTRACTAntibiotic resistance genes (ARGs) in livestock farms have attracted a growing attention with potential effects on human health. As one of the most important organic fertilizer, swine waste provided an ideal environment for understanding the dissemination and accumulation of ARGs in agricultural ecosystems. Here we conducted a year-round follow-up trace from swine waste to receiving environments, with the purpose of revealing the contamination profiles and ecological risks of ARGs at different seasons. Results i...
Source: Ecotoxicology and Environmental Safety - May 21, 2021 Category: Environmental Health Authors: Bingjun Han Fengxia Yang Xueli Tian Meirui Mu Keqiang Zhang Source Type: research
Synergistic Inactivation of African Swine Fever Virus by a Highly Complexed Iodine Combined with Compound Organic Acids
This study evaluated the synergistic inactivation effects of HPCI combined with compound organic acids (COAs) against ASFV. The results showed that the inactivation rates of HPCI, COAs, and HPCI+COAs on the reporter ASFV expressing the green fluorescent protein increased in dose- and time-dependent manners. The best inactivation effects were obtained when the compatibility ratio of HPCI and COAs was 5:1, and the ideal temperature was 25°C. Furthermore, there were no significant differences when comparing the efficacy of HPCI combined with COAs (HPCI+COAs) in inactivating wild-type ASFV and the reporter ASFV (P > 0.05)....
Source: Applied and Environmental Microbiology - May 19, 2022 Category: Microbiology Authors: Mengnan Qi Li Pan Ying Gao Miao Li Yanjin Wang Lian-Feng Li Chen Ji Yuan Sun Hua-Ji Qiu Source Type: research
Tracing the variation of dissolved organic matter in the two-stage anoxic/aerobic process treating swine wastewater using fluorescence excitation-emission matrix with parallel factor analysis
In this study, swine wastewater was treated by a step-feed two-stage anoxic/aerobic (SF-A/O/A/O) process. By using parallel factor (PARAFAC) analysis of fluorescence excitation-emission matrix (EEM), the main components of swine wastewater were aromatic protein-like substances (C1), tryptophan-like substances (C2), fulvic acid-like/humic-like substances (C3) and humic-like substances (C4). Protein-like substances were degraded significantly, while humic-like substances were difficult to be utilized by microorganisms. Fluorescence spectral indexes showed that the characteristics of endogenous input and humus were enhanced. ...
Source: Environmental Science and Pollution Research International - March 30, 2023 Category: Environmental Health Authors: Jingjing Liu Jinliang Gao Zhenxing Zhong Yayun Cheng Beiping Zhang Source Type: research
Using vermiwash to enhance performance of small-scale vermifiltration for swine farm wastewater
In conclusion, vermiwas h could enhance performance of vermifiltration for swine farm wastewater treatment. The available fraction of copper in vermicompost produced from vermifiltration decreased. Therefore, the farmer could produce vermicompost as the biofertilizer for agricultural production. Using vermifiltration for w astewater treatment in small swine farm could be the eco-solution for nutrient recovery, water resource recycles and minimize pollution.
Source: Environmental Geochemistry and Health - January 29, 2021 Category: Environmental Health Source Type: research
Fermentation of lignocellulose ingredients in vivo and in vitro via using fecal and caecal inoculums of monogastric animals (swine/turkeys)
In conclusions, lignocellulose A can be used as alternative source of fiber to maintain the health and function of digestive tract. Furthermore, the use of feces/excreta liquor provides a valid and proper estimate of digestibility or fermentation of feeds. These results provide further guide that this procedure would be an effective and practical means of approximating the digestibility of diets.
Source: Beni Suef University Journal of Basic and Applied Sciences - July 5, 2018 Category: Science Source Type: research
Effect of acclimatized paddy soil microorganisms using swine wastewater on degradation of rice straw
This study investigated the effect of acclimatized paddy soil microorganisms using swine wastewater on degradation of RS before anaerobic digestion. The total organic carbon, reducing sugar and NH4+-N content of paddy soil + RS + swine wastewater (PRS) (653.50 mg/L) was higher than that of other groups after 19 days. The carboxymethyl cellulose activity (4.01 IU), cellulose/lignin ratio (5.25) and the degradation rate of lignin (51.96%) in PRS were higher than those of other groups. The Firmicutes (21.02%), Chloroflexi (12.48%), Proteobacteria (20.92%), and Bacteroidetes (25.78%) were the main fermentation phyla in PRS dur...
Source: Bioresource Technology - April 12, 2021 Category: Biotechnology Authors: Jingjing Wang Leipeng Cao Yuhuan Liu Qi Zhang Roger Ruan Xuan Luo Source Type: research
Influence of different inoculation densities of black soldier fly larvae (Hermetia illucens) on heavy metal immobilization in swine manure
In this study, BSFL with inoculation densities of 0.08%, 0.24% and 0.40% was added to swine manure to investigate its influence on heavy metal bioaccumulation and bioavailability. The physicochemical properties, BSFL growth performance and amino acid contents were measured. The results showed that the germination index, total prepupal yield and bioavailable fraction removal rate (%) of Cr and Pb at an inoculation density of 0.40% of BSFL were the highest among all of the BSFL biocomposting groups. Although the bioaccumulation factor and heavy metal (Cd, Cr, Cu and Zn) concentrations of the BSFL body from swine manure with ...
Source: Environmental Science and Pollution Research International - March 17, 2022 Category: Environmental Health Authors: Dongmei Jiang Kunhong Jiang Rui Li Liangbin Zhao Zile Liu Bangjie Xiong Du Jin Xiaoxia Hao Li Zhu Bo Kang Lin Bai Source Type: research
Anaerobic swine digestate valorization via energy-efficient electrodialysis for nutrient recovery and water reclamation
This article provides insight into practical large-scale applications of digestate valorization through energy-efficient separation, thereby realizing a circular economy system and a decarbonizing supply chain of bio-nutrients.PMID:36099763 | DOI:10.1016/j.watres.2022.119066
Source: Cell Research - September 13, 2022 Category: Cytology Authors: Chao-Yu Wei Shu-Yuan Pan Yu-I Lin Thanh Ngoc-Dan Cao Source Type: research
Up-flow anaerobic sludge blanket treatment of swine wastewater: Effect of heterologous and homologous inocula on anaerobic digestion performance and the microbial community
Bioresour Technol. 2023 Jul 8:129463. doi: 10.1016/j.biortech.2023.129463. Online ahead of print.ABSTRACTThe effects of heterogenous (anaerobic sludge from treating distillery sewage, ASDS) and homologous (anaerobic sludge from treating swine wastewater, ASSW) inocula on anaerobic digestion and the microbial community in an up-flow anaerobic sludge blanket treating swine wastewater were compared. The highest chemical oxygen demand removal efficiencies with ASDS (84.8%) and ASSW (83.1%) were obtained with an organic loading rate of 15 kg COD/m3/d. For ASSW compared with ASDS, methane production efficiency was 15.3% higher a...
Source: Bioresource Technology - July 10, 2023 Category: Biotechnology Authors: Can Luo Tenbing He Guoying Wang Maoyuan Tian Liangyu Dai Tianyun Pu Guangliang Tian Source Type: research
