微氧耦合生物炭强化瓜尔胶生产废水厌氧消化运行效能

董媛媛; 于建昌; 单妤; 徐恬; 卜久贺; 王涛

doi:10.13205/j.hjgc.202604010

微氧耦合生物炭强化瓜尔胶生产废水厌氧消化运行效能

doi: 10.13205/j.hjgc.202604010

董媛媛¹,
于建昌²,
单妤³,
徐恬³,
卜久贺³,
王涛^3, ,

1. 南京信息工程大学环境科学与工程学院, 南京 210044;
2. 即墨利水水务有限公司, 山东青岛 266000;
3. 无锡学院环境科学与工程学院, 江苏无锡 214105

基金项目:

国家自然科学基金青年科学基金项目（82101339）；江苏省自然科学基金青年项目（BK20230174）

详细信息

作者简介:
董媛媛(1997—),女,硕士,主要研究方向为污水处理与资源化。Dongyuanyuan0121@163.com

通讯作者:
王涛(1984—),男,副教授,主要研究方向为污水处理与资源化。wangtao0532@cwxu.edu.cn

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出版历程
- 收稿日期: 2025-03-28
- 网络出版日期: 2026-06-06
- 刊出日期: 2026-04-01

Enhancement of anaerobic digestion operational efficiency for guar gum production wastewater using a microaerobic-biochar coupled system

1. School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China;
2. Jimo Lishui Water Affairs Co., Ltd., Qingdao 266000, China;
3. School of Environmental Science & Engineering, Wuxi University, Wuxi 214105, China

摘要

摘要: 瓜尔胶生产废水中的1，2-丙二醇在传统厌氧处理过程中易引发丙酸累积，进而导致微生物活性抑制。微氧条件可创造有利于发酵细菌代谢的环境，促进有机质底物的转化。生物炭可促进厌氧生物团聚体的形成，提高厌氧微生物的耐氧能力。研究以实际瓜尔胶生产废水为对象，设置空白对照组、厌氧组及微氧耦合生物炭（O₂/BC）组，探讨微氧耦合生物炭体系下厌氧消化的运行效能。结果表明，通过调控微氧曝气［0.2 mL/（g·d）］与生物炭投加量（15 g/L），在中温（37℃）条件下实现了高效的废水处理，COD去除率可达90%，较厌氧对照组提升了10.6百分点。出水COD浓度和丙酸浓度分别降至3800 mg/L和0.15 g/L，较厌氧对照组分别降低了49.6%和98.4%。气体产量为厌氧对照组的1.64倍，最高甲烷浓度达到77.2%。傅里叶变换红外光谱（FT-IR）显示，污泥表面—OH、—CH₂—和C—O官能团的数量明显增加，揭示了生物炭其微生物的吸附强化作用。扫描电子显微镜（SEM）观察结果显示，微氧耦合生物炭体系形成了以长杆菌为主的致密微生物聚集体，与传统厌氧污泥存在显著差异。微生物多样性分析表明，微氧耦合生物炭条件下提高了Clostridium和Comamonas的丰度，调控了丙酸/乙酸比例，进而优化酸化效率，促进了复杂有机物降解。
- 瓜尔胶废水 /
- 微氧 /
- 生物炭 /
- 厌氧消化 /
- 气体产量
Abstract: The 1，2-propanediol in guar gum production wastewater tends to trigger propionate accumulation during traditional anaerobic treatment， leading to microbial activity inhibition. Microaerobic conditions can create a favorable environment for fermentative bacteria metabolism and promote the conversion of organic substrates. Biochar can facilitate the formation of anaerobic microbial aggregates and enhance the oxygen tolerance of anaerobic microorganisms. In this study， actual guar gum production wastewater was used as the research object， and a blank control group， an anaerobic group， and a microaerobic-biochar coupled （O₂/BC） group were set up to investigate the operational efficiency of anaerobic digestion under the microaerobic-biochar coupled system. The results showed that through the regulation of micro-aeration ［0.2 mL/（g VS·d）］ and biochar dosage （15 g/L）， efficient wastewater treatment was achieved under mesophilic （37 ℃） conditions， with a COD removal efficiency reaching 90%， which was 10.6% higher than that of the anaerobic control group. The effluent COD concentration and propionate concentration were reduced to 3800 mg/L and 0.15 g/L， respectively， representing decreases of 49.6% and 98.4% compared to the anaerobic control group. The biogas production was 1.64 times that of the anaerobic control group， with the maximum methane concentration reaching 77.2%. Fourier transform infrared spectroscopy （FT-IR） revealed that the quantities of —OH， —CH₂— and C—O functional groups on the surface of the sludge increased significantly， revealing the enhanced adsorption effect of biochar on microorganisms. Scanning electron microscopy （SEM） observations showed that the microaerobic-biochar coupled system formed dense microbial aggregates dominated by long bacilli， which were significantly different from traditional anaerobic sludge. The analysis of the microbial community composition revealed that the microaerobic-biochar coupled condition increased the abundance of Clostridium and Comamonas species， thereby modulating the propionate-to-acetate ratio and thus enhancing the efficiency of complex organic matter degradation.
- guar gum wastewater /
- microaerobic /
- biochar /
- anaerobic digestion /
- gas production

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参考文献(39)

[1]	THOMBARE N，JHA U，MISHRA S，et al. Guar gum as a promising starting material for diverse applications:A review［J］. International Journal of Biological Macromolecules，2016，89：361- 372.
[2]	Beijing Diso Co-Research Consulting Co.，Ltd. 2023— 2029 China guar gum industry panorama research and investment strategy report［R/OL］. Co-research Industry Research Institute. http://www.shangyexinzhi.com/article/5306414.html，2022. 北京迪索共研咨询有限公司. 2023—2029年中国瓜尔胶行业全景调研及投资战略报告［R/OL］. 共研产业研究院. http://www.shangyexinzhi.com/article/5306414.html. 2022.
[3]	LESTER Y，YACOB T，MORRISSEY I. Can we treat hydraulic fracturing flowback with a conventional biological process? the case of guar gum［J］. Environmental Science& Technology Letters，2014，1（1）：133- 136.
[4]	YANGIN-GOMEC C，ENGIZ G. Anaerobic treatment of propylene glycol-contaminated domestic wastewater and microbial community profile at threshold ratio［J］. Journal of Environmental Management，2021，7（2）：e06296.
[5]	JAYAKODY K，KOMIYA T，EHLER P. Laboratory determination of water retention characteristics and pore size distribution in simulated MSW landfill under settlement［J］. International Journal of Environmental Research，2014，8（1）：79- 84.
[6]	WANG H Y，HU Y N，CAO G P，et al. Degradation of propylene glycol wastewater by Fenton's reagent in a semi-continuous reactor［J］. Chemical Engineering Journal，2011，170（1）：75- 81.
[7]	LI X S，LU S S，JIANG Y Y，et al. Effect and mechanism of biochar in mitigating acidification of anaerobic digestion process for food waste［J］. Environmental Engineering，2021，39（12）：179- 187. 李旭升，鹿莎莎，江远琰，等. 生物炭缓解餐厨垃圾厌氧消化酸化的效果及机制［J］. 环境工程，2021，39（12）：179- 187.
[8]	XU W Y，Fu S F，YANG Z M，et al. Improved methane production from corn straw by microaerobic pretreatment with a pure bacteria system［J］. Bioresource Technology，2018，259：18- 23.
[9]	ZHANG Y J，SU B S，XU H Y，et al. Research progress in the application of microaerobic technology to the biological treatment of wastewater［J］. Industrial Water Treatment，2017，37（7）：15- 20. 张原洁，苏本生，徐红岩，等. 微氧技术在废水生物处理中的应用研究进展［J］. 工业水处理，2017，37（7）：15- 20.
[10]	YUAN W B，ZHAO W X，LIU Y P，et al. Micro-oxygen hydrolysis acidification for improving biodegradability of petrochemical wastewater［J］. China Water& Wastewater，2024，40（11）：109- 114. 袁维波，赵维鑫，刘燕萍，等. 微氧水解酸化对石化废水可生化性的改善［J］. 中国给水排水，2024，40（11）：109- 114.
[11]	ZHENG S Z. Research on the treatment of high-concentration acrylic acid wastewater in multi-stage biological fluidized bed and up-flow anaerobic sludge blanket reactor UASB process［D］. Tianjin：Tianjin University，2015. 郑盛之. 多级微氧物流化床+UASB工艺处理高浓度丙烯酸废水的研究［D］. 天津：天津大学，2015.
[12]	QI T C，WAN QIN Z，TIAN J L，et al. Revealing mechanism of micro-aeration for enhancing volatile fatty acids production from swine manure.［J］. Bioresource Technology，2022，365：128136.
[13]	NGUYEN D，KHANAL S K. A little breath of fresh air into an anaerobic system：How microaeration facilitates anaerobic digestion process［J］. Biotechnology Advances，2018，36（7）：1971- 1983.
[14]	WANG Y，YU G W，JIANG R Q，et al. Adsorption of ciprofloxacin hydrochloride by biochar from food waste digestate residues［J］. Chemical Industry and Engineering Progress，2023，42（4）：2160- 2170. 王玉，余广炜，江汝清. 餐厨厌氧沼渣生物炭吸附盐酸环丙沙星［J］. 化工进展，2023，42（4）：2160- 2170.
[15]	GAO X，WANG G J，LI Q，et al. Characteristics of enhanced anaerobic degradation and methanogenesis of phenol by biochar addition［J］ China Environmental Science，2020，40（1）：176- 185. 高新，王高骏，李倩，等. 生物炭强化苯酚厌氧降解产甲烷特性［J］. 中国环境科学，2020，40（1）：176- 185.
[16]	LIANG J Q，LÜ Y，LU Y，et al. Recovery of ammonium and phosphate from corn processing wastewater using magnetic mgo-biochar.［J］ Environmental Engineering，2020，38（9）：89- 94. 梁嘉琪，吕媛，陆茵，等. 铁磁性氧化镁生物炭对玉米加工废水中氮磷的回收效果［J］. 环境工程，2020，38（9）：89- 94.
[17]	GUAN Q，QU Y，ZHAI Y，et al. Enhancement of methane production in anaerobic digestion of high salinity organic wastewater：The synergistic effect of nano-magnetite and potassium ions［J］. Chemosphere，2023，318：137974.
[18]	YAO S，FU L T，LIU C，et al. Adsorption of graphitized biochar with high specific surface area.［J］ Journal of Engineering Thermophysics，2021（10）：2681- 2685. 姚森，付泺檀，刘闯，等. 高比表面积石墨化生物炭吸附性能研究［J］. 工程热物理学报，2021（10）：2681- 2685.
[19]	LIU D，LI Q W，HOU J B，et al. Porous 3D graphenebased biochar materials with high areal sulfur loading for lithium-sulfur batteries［J］. Sustainable Energy& Fuels，2018，2（10）：2197- 2205.
[20]	DUDEK M，WIECHOWSKI K，MANCZARSKI P，et al. The effect of biochar addition on the biogas production kinetics from the anaerobic digestion of brewers' spent grain［J］. Energies，2019，12（8）：1518.
[21]	JOHNRAVINDAR D，WONG J W C，CHAKRABORTY D，et al. Food waste and sewage sludge co-digestion amended with different biochars:VFA kinetics，methane yield and digestate quality assessment［J］. Journal of Environmental Management，2021，300：112457.
[22]	ZHOU X X，SUN Y B，LI S，et al. Treatment of polyacrylamide wastewater by powder activated carbon treatment process.［J］ Chinese Journal of Environmental Management，2010，4（4）：817- 821. 周晓霞，孙亚兵，李署，等. PACT生艺处理 PAM 生产废水的实验研究［J］. 环境工程学报，2010，4（4）：817- 821.
[23]	QIANG H，JUNHENG Z，YADI P，et al. Oxygen-containing functional groups of biochars enhancing the oxygen release of CaO₂ and the generation of free radicals［J］. Process Safety and Environmental Protection，2025，203：107126.
[24]	BOLAN S，HOU D，WANG L，et al. The potential of biochar as a microbial carrier for agricultural and environmental applications［J］. Science of the Total Environment，2023，886：163968.
[25]	Editorial Board of Methods for Monitoring and Analysis of Water and Wastewater，State Environmental Protection Administration. Water and wastewater monitoring analysis method［M］. 4th. Edition. Beijing：China Environmental Science Press，2002：227- 228. 国家环境保护总局《水和废水监测分析方法》编委会. 水和废水监测分析方法［M］. 4版. 北京：中国环境科学出版社，2002：227- 228.
[26]	YUAN H Y，DING L J，ZAMA E F，et al. Biochar modulates methanogenesis through electron syntrophy of microorganisms with ethanol as a substrate［J］. Environ Sci Technol，2018，52（21）：12198- 12207.
[27]	REN J，PEI Y，XIE Q Q，et al. Effect of micro-oxygen concentration on hydrolysis and acidification efficiency and microbial metabolism of printing and dyeing wastewater［J］ Technology of Water Treatment，2025，51（1）：59- 63. 任杰辉，裴垚，谢奇奇，等. 微氧浓度对印染废水水解酸化效率及微生物代谢的影响［J］. 水处理技术，2025，51（1）：59- 63.
[28]	ZHENG S，LI H，CUI C. An upflow microaerobic sludge blanket reactor operating at high organic loading and low dissolved oxygen levels［J］. Biotechnology Letters，2011，33（4）：693- 697.
[29]	MA H，HU Y，KOBAYASHI T，et al. The role of rice husk biochar addition in anaerobic digestion for sweet sorghum under high loading condition［J］. Biotechnology Reports，2020，28：e00515.
[30]	ZHANG P Y，ZHAO D Y，DING L Z，et al. Kinetic and thermodynamic mechanisms of methane production from propionate and Acetate enhanced by biochar at high temperature［J］. Chinese Journal of Environmental Engineering，2023，17（6）：1955- 1966. 张佩云，赵丹阳，丁丽姿，等. 高温条件下生物炭强化丙酸与乙酸产甲烷的动力学及热力学机制［J］. 环境工程学报，2023，17（6）：1955- 1966.
[31]	DING K，WU B，WANG Y，et al. Study on synergistic effect of carrier combined with micro-aeration on anaerobic digestion of food waste［J］. Chemical Engineering Journal，2024，498：131923.
[32]	LIU Y，HE L，LIU M，et al. Different regulation strategies of anaerobic digestion by AC/CaO₂ and Fe₃O₄/CaO₂：Reactive oxygen species induction，methanogenic performance，and microbial response［J］. Bioresource Technology，2024，406：130982.
[33]	CARMELA，RUSSO，FERNANDO，et al. Infrared spectroscopy of some carbon-based materials relevant in combustion：Qualitative and quantitative analysis of hydrogen［J］. Carbon，2014，74（1）：127- 138.
[34]	ZHONG L Y，LIAO R J，LIU F Y J，et al. Adsorption of tetracycline hydrochloride by KOH modified peanut shell biochar and its mechanism［J］. Journal of Agro-Environment Science，2023，42（9）：2038- 2048. 钟来元，廖荣骏，刘付宇杰，等. KOH改性花生壳生物炭对盐酸四环素的吸附性能及其机理［J］. 农业环境科学学报，2023，42（9）：2038- 2048.
[35]	YANG Y，THEODORE T，YUNTAO Z，et al. Systematic hydrogen-bond manipulations to establish polysaccharide structure-property correlations［J］. Angewandte Chemie（International ed. in English），2019，58（37）：13127- 13132.
[36]	YE J P，ZHANG P Y，XIAN G，et al. Effect of iron modified biochar on anaerobic digestion enhancement of brewery wastewater［J］. Materials Reports，2018，32（20）：3634- 3637. 叶俊沛，张盼月，仙光，等. 铁改性生物炭对啤酒废水厌氧消化产甲烷的促进作用研究［J］. 材料导报，2018，32（20）：3634- 3637.
[37]	REN A D，ZHENG Y，SUN T Z，et al. Effect of slurry recirculation time on anaerobic digestion of kitchen waste with high solid content［J］. Environmental Engineering，2021，39（12）：159- 165. 任安东，郑义，孙天姿，等. 沼液回流时间对厨余垃圾高含固厌氧发酵的影响［J］. 环境工程，2021，39（12）：159- 165.
[38]	LI J，XIE P，CHEN P，et al. Enhancement of anaerobic digestion of refinery excess sludge hydrothermal liquid by pyrolytic residue of spent bleaching earth［J］. Industrial Water Treatment，2022，42（12）：65- 71. 李晋，谢萍，陈平，等. 废白土热解残渣强化炼化剩余污泥水热液厌氧产能［J］. 工业水处理，2022，42（12）：65- 71.
[39]	SCHUCHMANN K，MÜLLER V. Autotrophy at the thermodynamic limit of life：a model for energy conservation in acetogenic bacteria［J］. Nature Reviews Microbiology，2014，12（12）：809- 821.