NaOH和沼液浸泡预处理对麦糠厌氧发酵的强化作用比较

孙嘉臣; 李子富; 朱立新

doi:10.12153/j.issn.1674-991X.2019.01.150

NaOH和沼液浸泡预处理对麦糠厌氧发酵的强化作用比较

doi: 10.12153/j.issn.1674-991X.2019.01.150

孙嘉臣¹,
李子富^1,2,*, ,,
朱立新²

1.
北京科技大学能源与环境工程学院,北京 100083
2.
南京沿江资源生态科学研究院有限公司,江苏南京 210047

详细信息

作者简介:
孙嘉臣(1994—),男,硕士,主要研究方向为固体废物处理, sunjiachen2012@126.com

通讯作者:
李子富 E-mail: zifuli@ustb.edu.cn

中图分类号: X712
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- 被引次数: 0
出版历程
- 收稿日期: 2018-12-10
- 刊出日期: 2019-09-20

Comparison of enhancements of NaOH and liquid digestate soaking pretreatments for the anaerobic digestion of wheat husk

SUN Jiachen¹,
LI Zifu^{1,2,*
, ,},
ZHU Lixin²

1.
School of Energy and Environment Engineering, University of Science and Technology Beijing, Beijing 10083, China
2.
Nanjing Academy of Resources and Ecology Sciences, Nanjing 210047, China

More Information

Corresponding author: Zifu LI E-mail: zifuli@ustb.edu.cn

摘要

摘要: 采用浓度分别为2%、4%、6%、8%的NaOH在80 ℃下预处理麦糠2 h,鸡粪和牛粪沼液在25 ℃下预处理麦糠5 d,比较NaOH和沼液浸泡预处理对麦糠厌氧发酵的强化作用。结果表明:6%NaOH获得最大产甲烷潜力,为199.5 mL/g,比对照组增加了191.2%(68.5 mL/g),且消化时间仅为6 d;鸡粪沼液的预处理效果明显优于牛粪沼液,最大产甲烷潜力达130.8 mL/g,相当于2%NaOH的预处理效果,但无需额外添加化学或生物等预处理药物。因此,在应用中可以根据实际情况,灵活选择2种预处理方式。
- 麦糠 /
- 沼液浸泡 /
- NaOH /
- 预处理 /
- 厌氧发酵
Abstract: The enhancements of NaOH and liquid digestate soaking pretreatments for the anaerobic digestion of wheat husk were compared. Different concentrations of NaOH (2%, 4%, 6%, 8%) at 80 ℃ for 2 h were investigated, and the results showed that 6% NaOH treated wheat husk obtained maximum methane yield of 199.5 mL/g, which was 191.2% higher than untreated raw substance (68.5 mL/g),and the digestion time was only 6 days. The results showed that after 5 days of pretreatment of wheat bran with liquid digestate, the effect of liquid digestate from chicken manure was apparently superior to that from cattle manure, and the maximum methane yield reached 130.8 mL/g, being equivalent to that from 2% NaOH pretreatment, but without additional chemical or biological pretreatment drugs. Thus, the two pretreatment methods could be selected and applied flexibly according to the practical demand.
- wheat husk /
- liquid digestate soaking /
- NaOH /
- pretreatment /
- anaerobic digestion

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参考文献(24)

[1]	BLEDZKI A K, MAMUN A A, VOLK J . Physical,chemical and surface properties of wheat husk,rye husk and soft wood and their polypropylene composites[J]. Composites Part A:Applied Science and Manufacturing, 2010,41:480-488.
[2]	TRAN T P T, BÉNÉZET J C, BERGERET A . Rice and einkorn wheat husks reinforced poly (lactic acid)(PLA) biocomposites:effects of alkaline and silane surface treatments of husks[J]. Industrial Crops and Products, 2014,58:111-124.
[3]	ELSAYED M, ANDRES Y, BLEL W , et al. Effect of VS organic loads and buckwheat husk on methane production by anaerobic co-digestion of primary sludge and wheat straw[J]. Energy Conversion and Management, 2016,117:538-547.
[4]	SINGH R, BHASKAR T, DORA S , et al. Catalytic hydrothermal upgradation of wheat husk[J]. Bioresource Technology, 2013,149(4):46-51.
[5]	HOSSEINI M, AZIZ H A, MOJIRI A . Enhancement of rice straw biodegradability by alkaline and acid thermochemical pretreatment process:optimization by response surface methodology(RSM)[J]. Caspian Journal of Applied Sciences Research, 2012,1(12):8-24.
[6]	CHANDRA R, TAKEUCHI H, HASEGAWA T , et al. Improving biodegradability and biogas production of wheat straw substrates using sodium hydroxide and hydrothermal pretreatments[J]. Energy, 2012,43(1):273-282.
[7]	龚舒静, 段青松, 杨姝 , 等. NaOH预处理对杂交狼尾草厌氧发酵产沼气的影响[J]. 环境工程学报, 2015,9(4):1970-1976. GONG S J, DUAN Q S, YANG S , et al. Anaerobic fermentation of hybrid pennisetum for biogas under NaOH pretreatment[J]. Chinese Journal of Environmental Engineering, 2015,9(4):1970-1976.
[8]	LI D, LIU S, MI L , et al. Effects of feedstock ratio and organic loading rate on the anaerobic mesophilic co-digestion of rice straw and cow manure[J]. Bioresource Technology, 2015,189(3):19-26.
[9]	XIA A, MURPHY J . Microalgal cultivation in treating liquid digestate from biogas systems[J]. Trends in Biotechnology, 2016,34:264-275.
[10]	王英琪, 杨宏志, 孟海波 , 等. 沼液预处理玉米秸秆产沼气工艺参数优化[J]. 农业工程学报, 2018,34(23):239-245. WANG Y Q, YANG H Z, MENG H B , et al. Parameter optimization of corn staw anaerobic digestibility pretreated by biogas slurry[J]. Transactions of the Chinese Society of Agricultural Engineering, 2018,34(23):239-245.
[11]	李建, 刘庆玉, 郎咸明 , 等. 响应面法优化沼液预处理玉米秸秆条件的研究[J]. 可再生能源, 2016,34(2):292-297. LI J, LIU Q Y, LANG X M , et al. Process parameters optimization of maize straw pretreated by biogas slurry using response surface methodology[J]. Renewable Energy Resources, 2016,34(2):292-297.
[12]	BADSHAH M, LAM D M, LIU J , et al. Use of an automatic methane potential test system for evaluating the biomethane potential of sugarcane bagasse after different treatments[J]. Bioresource Technology, 2012,114:262-269.
[13]	CLESCERI L, GREENBERG A E, EATON A D . Standard methods for examination of water and wastewater[J].American Journal of Public Health and the Nations Health,2012(4):387-388.
[14]	DELGENES J, PENAUD V, MOLETTA R . Pretreatments for the enhancement of anaerobic digestion of solid wastes[J]. Journal of Dairy Science, 2003,74(10):3583-3597.
[15]	EL-MASHAD H . Kinetics of methane production from the codigestion of switchgrass and Spirulina platensis algae[J]. Bioresource Technology, 2013,132:305-312.
[16]	HOLLIGER C . Towards a standardization of biomethane potential tests[J]. Water Science and Technology, 2016,74(11):2515-2522.
[17]	HENDRIKS A, ZEEMAN G . Pretreatments to enhance the digestibility of lignocellulosic biomass[J]. Bioresource Technology, 2009,100(1):10-18.
[18]	许旭, 王进, 彭书传 , 等. 添加NaOH对水生植物固体厌氧发酵产甲烷的作用[J]. 环境工程学报, 2014,8(8):3379-3384. XU X, WANG J, PENG S C , et al. Effects of NaOH on solid-state anaerobic digestion of curly-leaf pondweed[J]. Chinese Journal of Environmental Engineering, 2014,8(8):3379-3384.
[19]	AHN H K . Evaluation of biogas production potential by dry anaerobic digestion of switchgrass-animal manure mixtures[J]. Applied Biochemistry and Biotechnology, 2010,160(4):965-975.
[20]	GOSSETT J M, STUCKEY D C, OWEN W F , et al. Heat-treatment and anaerobic-digestion of refuse[J]. Journal of Environmental Engineering-ASCE, 1982,108(3):437-454.
[21]	KIM T H, LEE Y Y . Pretreatment and fractionation of corn stover by ammonia recycle percolation process[J]. Bioresource Technology, 2005,96(18):2007-2013.
[22]	STEINHAUS B . A portable anaerobic microbioreactor reveals optimum growth conditions for the methanogen methanosaeta concilii[J]. Applied and Environmental Microbiology, 2007,73(5):1653-1658.
[23]	TARKOW H . A mechanism for improving the digestibility of lignocellulosic materials with dilute alkali and liquid ammonia[R].Washington DC:Advances in Chemistry,American Chemical Society, 1969.
[24]	LU H, CHANDRAN K, STENSEL D . Microbial ecology of denitrification in biological wastewater treatment[J]. Water Research, 2014,64(7):237-254.