制备并探究以农业废弃物玉米秸秆为原料的低温热解生物炭（BC）、酸改性生物炭（SBC）和酸磁复合改性生物炭（MSBC）3种生物炭添加剂在不同添加剂量（1、3、5、7 g/L）下对餐厨垃圾厌氧消化性能的影响及作用机制。结果表明：投加3种生物炭均能提高餐厨垃圾的累计沼气产量,其中投加3 g/L MSBC的试验组促进作用最显著,较空白对照组提高59.13%。产气动力学参数也表明,投加MSBC可显著增大消化系统的产沼气潜力,提高产气速率的同时缩短了延滞期。此外,通过主成分分析（PCA）明确了发酵条件、产气动力学参数和环境因子之间的内在关系,发现可通过改变MSBC的添加剂量,进而调节系统AN浓度与挥发性酸浓度来影响沼气产量。由此可见,MSBC可作为一种有效的生物炭复合材料,通过耦合厌氧消化技术实现餐厨垃圾资源化处理工艺的能源效益与生态效益。
Abstract
Three kinds of biochar additives, namely, low temperature pyrolysis biochar （BC）, acid-modified biochar （SBC） and acid-magnetic composite modified biochar （MSBC）, were prepared and investigated for their effects on the anaerobic digestion performance of food waste at different additive levels （1,3,5,7 g/L）. The results showed that the three biochar additives were able to increase the cumulative biogas production of kitchen waste, and the test group with 3 g/L MSBC had the most significant effect, which was 59.13% higher than that of the blank control group. Low-temperature pyrolysis biochar （BC）, acid-modified biochar （SBC） and acid-magnetic composite modified biochar （MSBC） were prepared from corn stover as the raw material, and the effects of the three biochar additives on the biogas production of anaerobic digestion of kitchen waste were investigated at different dosage levels （1,3,5,7 g/L）, and the biogas production of the three groups was improved. The biogas production efficiency of all three biochar additive groups was effectively improved. Among them, the test groups with BC, SBC and MSBC increased 36.87%, 43.88% and 59.13%, respectively, compared with the blank control group, which showed that the addition of MSBC had the best effect on the gas production from kitchen waste. The kinetic parameters of gas production also showed that the addition of MSBC could significantly increase the biogas production potential of the digestive system, improve the gas production rate and shorten the delay period. In addition, the intrinsic relationship between fermentation conditions, gas production kinetic parameters and environmental factors was clarified by principal component analysis （PCA）, and it was found that the biogas production could be influenced by varying the amount of MSBC additives, which in turn regulated the system AN concentration and volatile acid concentration. Thus, MSBC can be used as an effective biochar composite material to achieve energy efficiency and ecological benefits of kitchen waste resource treatment process by coupling anaerobic digestion technology.
关键词
改性生物炭 /
厌氧消化 /
沼气 /
Fe3O4 /
餐厨垃圾
Key words
modified biochar /
anaerobic digestion /
methane /
Fe3O4 /
kitchen waste
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参考文献
[1] 桂许维, 罗艺芳, 李振轮, 等. 餐厨垃圾协同剩余污泥发酵产酸的生物过程与影响因素研究进展[J]. 生物工程学报, 2021, 37(2): 448-460.
GUI X W, LUO Y F, LI Z L, et al.Co-fermentation of kitchen waste and excess sludge for organic acid production: a review[J]. Chinese journal of biotechnology, 2021, 37(2): 448-460.
[2] SHI Y, DENG Y W, WANG G A, et al.Stackelberg equilibrium-based eco-economic approach for sustainable development of kitchen waste disposal with subsidy policy: a case study from China[J]. Energy, 2020, 196: 117071.
[3] BANIAMERIAN H, ISFAHANI P G, TSAPEKOS P, et al.Application of nano-structured materials in anaerobic digestion: current status and perspectives[J]. Chemosphere, 2019, 229: 188-199.
[4] 冯晶, 荆勇, 赵立欣, 等. 生物炭强化有机废弃物厌氧发酵技术研究[J]. 农业工程学报, 2019, 35(12): 256-264.
FENG J, JING Y, ZHAO L X, et al.Research progress on biochar enhanced anaerobic fermentation technology of organic wastes[J]. Transactions of the Chinese Society of Agricultural Engineering, 2019, 35(12): 256-264.
[5] KAUR G, JOHNRAVINDAR D, WONG J W C. Enhanced volatile fatty acid degradation and methane production efficiency by biochar addition in food waste-sludge co-digestion: a step towards increased organic loading efficiency in co-digestion[J]. Bioresource technology, 2020, 308: 123250.
[6] WEI W, GUO W S, NGO H H, et al.Enhanced high-quality biomethane production from anaerobic digestion of primary sludge by corn stover biochar[J]. Bioresource technology, 2020, 306: 123159.
[7] BARUA S, DHAR B R.Advances towards understanding and engineering direct interspecies electron transfer in anaerobic digestion[J]. Bioresource technology, 2017, 244(Pt 1): 698-707.
[8] SUN C Y, LIU F, SONG Z W, et al.Feasibility of dry anaerobic digestion of beer lees for methane production and biochar enhanced performance at mesophilic and thermophilic temperature[J]. Bioresource technology, 2019, 276: 65-73.
[9] 陈佼, 张建强, 陆一新, 等. 玉米芯生物炭对含盐污水中氨氮的吸附特性[J]. 安全与环境学报, 2017, 17(3): 1088-1093.
CHEN J, ZHANG J Q, LU Y X, et al.Study on the adsorption feature of ammonium nitrogen in the salt-laden sewage by the corn cob biochar[J]. Journal of safety and environment, 2017, 17(3): 1088-1093.
[10] NING Z F, XU B, ZHONG W Z, et al.Preparation of phosphoric acid modified antibiotic mycelial residues biochar: loading of nano zero-valent iron and promotion on biogas production[J]. Bioresource technology, 2022, 348: 126801.
[11] NGUYEN L N, VU M T, ABU HASAN JOHIR M, et al. Promotion of direct interspecies electron transfer and potential impact of conductive materials in anaerobic digestion and its downstream processing—a critical review[J]. Bioresource technology, 2021, 341: 125847.
[12] LI G Z, ZHANG Z Q, GENG C, et al.Sulfhydryl-functionalised magnetic nanoparticles as sorbent in dispersive solid-phase extraction for the rapid enrichment of mercury species from natural water samples[J]. International journal of environmental analytical chemistry, 2017, 97(7): 657-672.
[13] CRUZ VIGGI C, SIMONETTI S, PALMA E, et al.Enhancing methane production from food waste fermentate using biochar: the added value of electrochemical testing in pre-selecting the most effective type of biochar[J]. Biotechnology for biofuels, 2017, 10: 303.
[14] GAO M X, SONG J H, WANG Y, et al.Dynamic interaction mechanism of environment, microorganisms, and functions in anaerobic digestion of food waste with magnetic powder supplement[J]. Bioresource technology, 2021, 340: 125656.
[15] 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): 1-2, 3634-3637, 3653.
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): 1-2, 3634-3637, 3653.
[16] 孙家婉, 张振华, 赵玉萍, 等. 生物炭改性及其在农田土壤重金属修复中的应用研究进展[J]. 江苏农业科学, 2022, 50(10): 9-15.
SUN J W, ZHANG Z H, ZHAO Y P, et al.Research progress on modification of biochar and its application in remediation of heavy metals in farmland soil[J]. Jiangsu agricultural sciences, 2022, 50(10): 9-15.
[17] 盛紫琼, 左剑恶, 毛伟, 等. 酸/碱改性香蒲生物炭对水中磷的去除及其机制研究[J]. 环境科学学报, 2022, 42(4): 195-203.
SHENG Z Q, ZUO J E, MAO W, et al.Performance and mechanisms of phosphate adsorption in aqueous solution by acid/alkali-modified cattail biochar[J]. Acta scientiae circumstantiae, 2022, 42(4): 195-203.
[18] 周淑红, 张博文, 卫嘉华, 等. 铁改性生物炭对几种染料的吸附机理研究[J]. 环境化学, 2023(11): 3928-3939.
ZHOU S H, ZHANG B W, WEI J H, et al.Study on the adsorption mechanism of iron modified biochar on several dyes[J]. Environmental chemistry, 2023(11): 3928-3939.
[19] IMRAN-SHAUKAT M, BINTI ROSLI N R, WAHI R, et al. Chemically modified coconut shell biochar for removal of heavy metals from aqueous solution[J]. Defect and diffusion forum, 2021, 411: 79-91.
[20] HU S J, LIU C S, BU H L, et al.Efficient reduction and adsorption of Cr(VI) using FeCl3-modified biochar: synergistic roles of persistent free radicals and Fe(II)[J]. Journal of environmental sciences (China), 2024, 137: 626-638.
[21] 张斯奇. 果枝生物炭的制备及其对不同原料厌氧发酵效果的影响[D]. 杨凌: 西北农林科技大学, 2022.
ZHANG S Q.Preparation of biochar from fruit branches and its effect on anaerobic fermentation of different raw materials[D]. Yangling: Northwest A&F University, 2022.
[22] MAO C L, WANG X J, XI J C, et al.Linkage of kinetic parameters with process parameters and operational conditions during anaerobic digestion[J]. Energy, 2017, 135: 352-360.
[23] MA G F, YANG Q, SUN K J, et al.Nitrogen-doped porous carbon derived from biomass waste for high-performance supercapacitor[J]. Bioresource technology, 2015, 197: 137-142.
[24] KARKI H P, OJHA D P, JOSHI M K, et al.Effective reduction of p-nitrophenol by silver nanoparticle loaded on magnetic Fe3O4/ATO nano-composite[J]. Applied surface science, 2018, 435: 599-608.
[25] 王颖. 猕猴桃枝生物炭添加对不同厌氧发酵条件下混合物料产甲烷特性的影响[D]. 杨凌: 西北农林科技大学, 2022.
WANG Y.Effect of biochar addition from kiwifruit branches on methane production characteristics of mixed materials under different anaerobic fermentation conditions[D]. Yangling: Northwest A&F University, 2022.
[26] 王欣姿, 王攀, 杨鑫玉, 等. 生物炭负载纳米零价铁对厨余垃圾厌氧发酵性能的影响[J]. 环境工程, 2023(8): 154-161.
WANG X Z, WANG P, YANG X Y, et al.Effect of nano zero valent iron loaded on Biochar on anaerobic fermentation performance of kitchen waste[J]. Environmental engineering, 2023(8): 154-161.
[27] AJAY C M, MOHAN S, DINESHA P, et al.Review of impact of nanoparticle additives on anaerobic digestion and methane generation[J]. Fuel, 2020, 277: 118234.
[28] MA J Y, CHEN F F, XUE S X, et al.Improving anaerobic digestion of chicken manure under optimized biochar supplementation strategies[J]. Bioresource technology, 2021, 325: 124697.
[29] LI J J, LI C X, ZHAO L X, et al.The application status, development and future trend of nano-iron materials in anaerobic digestion system[J]. Chemosphere, 2021, 269: 129389.
[30] 李天沛, 丁为民, 柴喜存, 等. 酸、碱、氧化试剂与低温冻融联合预处理对高粱秸秆厌氧发酵产甲烷的影响[J]. 太阳能学报, 2022, 43(3): 492-500.
LI T P, DING W M, CHAI X C, et al.Effect of combined pretreatment of acid, alkali, oxidizing reagents and low temperature freeze-thaw on methane production by anaerobic fermentation of sorghum straw[J]. Acta energiae solaris sinica, 2022, 43(3): 492-500.
[31] CHEN M, WANG F, ZHANG D L, et al.Effects of acid modification on the structure and adsorption NH4+-N properties of biochar[J]. Renewable energy, 2021, 169: 1343-1350.
[32] ZHANG J X, QU Y Y, QI Q X, et al.The bio-chemical cycle of iron and the function induced by ZVI addition in anaerobic digestion: a review[J]. Water research, 2020, 186: 116405.
[33] 吴晋锴, 孙辰, 刘荣厚. 氨处理时间对小麦秸秆厌氧发酵产沼气的影响[J]. 太阳能学报, 2013, 34(9): 1547-1550.
WU J K, SUN C, LIU R H.Effects of urea treatment time on anaerobic fermentation of wheat straw for biogas production[J]. Acta energiae solaris sinica, 2013, 34(9): 1547-1550.
[34] GUO W Q, WU Q L, YANG S S, et al.Optimization of ultrasonic pretreatment and substrate/inoculum ratio to enhance hydrolysis and volatile fatty acid production from food waste[J]. RSC advances, 2014, 4(95): 53321-53326.
基金
河北省重点研发计划（22323802D）;保定市科技“揭榜挂帅”项目（2022创323）;河北省科技计划（215A9908D）
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