外源吸收剂对沼液CO2吸收及农业应用的影响

doi:10.16085/j.issn.1000-6613.2017.04.047

摘要/Abstract

摘要： 作为生物质厌氧发酵产沼气的副产物，沼液呈弱碱性，并富含刺激植物生长的有益成分，理论上可作为一种融合CO₂吸收和CO₂生物储存的可再生吸收剂，但沼液CO₂吸收性能需要强化。外源CO₂吸收剂的添加有助于提升沼液的CO₂吸收性能，但也会影响沼液的植物生理毒性。因此，本文在经典鼓泡式CO₂吸收装置中，研究了6种典型外源吸收剂对沼液CO₂吸收性能及植物生理毒性的影响，探究了沼液浓缩倍数和外源吸收剂添加量对沼液CO₂吸收性能的提升效果，并从植物生理毒性及总磷含量角度探讨了其对沼液农业应用的影响。结果表明：减压浓缩对沼液中主要有害物质氨氮具有脱除作用，当沼液被浓缩到5倍时，氨氮脱除率可达87.69%。与直接向原沼液中引入低浓度外源吸收剂相比，通过向浓缩沼液中添加高浓度吸收剂不仅可大幅提高单位体积沼液的CO₂携带量，而且将富CO₂沼液稀释至浓缩前的体积后，其种子发芽指数（GI值）也优于原沼液。同时，外源吸收剂的添加对沼液中总磷具有一定脱除作用，降低了沼液应用过程中磷对环境的潜在危害。6种外源吸收剂中，乙醇胺（MEA）在提高沼液CO₂吸收性能及降低植物生理毒性等方面具有综合优势。

关键词: 沼液, 可再生吸收剂, 厌氧发酵, 减压浓缩, 二氧化碳捕集, 植物生理毒性

Abstract: Biogas slurry is the byproduct of biogas produced by anaerobic fermentation of biomass,which is weak alkaline and rich in useful ingredients stimulating the plant growth. Theoretically,biogas slurry can be used as a renewable absorbent combining CO₂ absorption and CO₂ biological fixation. But CO₂ absorption performance of biogas slurry needs to be enhanced. Adding exogenous CO₂ absorbents into biogas slurry can contribute to promoting CO₂ absorption performance of biogas slurry,but also affect its phytotoxicity. So,the effects of 6 exogenous CO₂ absorbents added into biogas slurry on CO₂ absorption performance of biogas slurry were investigated using the typical CO₂ bubbling absorption system. Additionally,the feasibility of agricultural application of CO₂-rich biogas slurry was also explored in terms of the change of phytotoxicity and total phosphorus concentration before and after adding exogenous CO₂ absorbents. The results showed that ammonia nitrogen,the main harmful substance in the biogas slurry,could be removed by concentrating biogas slurry at vacuum conditions. And the removal efficiency of ammonia nitrogen could reach up to about 87.69% when the biogas slurry concentration was increased by 5 times. Compared with adding absorbents into the raw biogas slurry directly,adding the same absorbents with high concentrations into the concentrated biogas slurry could greatly improve the CO₂absorption capacity. In addition,when the concentrated CO₂-rich biogas slurry was diluted so that the concentration of CO₂ absorbent concentration was equal to that of the raw biogas slurry,the germination index(GI) of Chinese cabbage treated by the concentrated CO₂-rich slurry was higher than that treated by raw biogas slurry. Moreover,adding exogenous absorbents in biogas slurry can help remove the total phosphorus in biogas slurry,which reduces the environmental hazards for agricultural applications. Among all of 6 exogenous absorbents,MEA has the comprehensive advantages in terms of improving CO₂ absorption performance and reducing the phytotoxicity of biogas slurry.

Key words: biogas slurry, renewable absorbent, anaerobic digestion, vacuum concentration, CO₂ capture, phytotoxicity

中图分类号:

S216.4

王文超, 贺清尧, 余歌, 刘璐, 晏水平. 外源吸收剂对沼液CO₂吸收及农业应用的影响[J]. 化工进展, 2017, 36(04): 1512-1520.

WANG Wenchao, HE Qingyao, YU Ge, LIU Lu, YAN Shuiping. Effect of exogenous absorbents addition on CO₂ absorption performance of biogas slurry and its agricultural application[J]. Chemical Industry and Engineering Progress, 2017, 36(04): 1512-1520.

参考文献

[1] 郑戈,张全国. 沼气提纯生物天然气技术研究进展[J]. 农业工程学报,2013,29(9):1-8. ZHENG Ge,ZHANG Quanguo. Research progress on the technology for upgrading biogas to bio-methane[J]. Transactions of the Chinese Society of Agricultural Engineering,2013,29(9):1-8.
[2] MCLEOD A,JEFFERSON B,MCADAM E J. Biogas upgrading by chemical absorption using ammonia rich absorbents derived from wastewater[J]. Water Research,2014,67C:175-186.
[3] 贺清尧,蔡凯,晏水平,等. 有机胺基氨基酸盐混合吸收剂对沼气中CO₂的分离特性[J]. 化工进展,2015,34(3):857-862. HE Qingyao,CAI Kai,YAN Shuiping,et al. Performance of CO₂ removal from biogas by using amine-based amino acid salts blended absorbents[J]. Chemical Industry and Engineering Progress,2015,34(3):857-862.
[4] 陈思铭,张永春,郭超,等. 醇胺溶液吸收CO₂的动力学研究进展[J]. 化工进展,2014,33(s1):1-13. CHEN Siming,ZHANG Yongchun,GUO Chao,et al. Reaction kinetics of absorption of carbon dioxide with alkanolamines[J]. Chemical Industry and Engineering Progress,2014,33(s1):1-13. (in Chinese)
[5] 晏水平,贺清尧,蔡凯,等. 有机胺基氨基酸盐吸收剂的沼气CO₂分离特性[J]. 农业机械学报,2014,45(6):199-205. YAN Shuiping,HE Qingyao,CAI Kai,et al. Performance of CO₂ removal from biogas by using amine-based amino acid salts[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(6):199-205.
[6] YAN S P,FANG M X,WANG Z,et al. Economic analysis of CO₂ separation from coal-fired flue gas by chemical absorption and membrane absorption technologies in China[J]. Energy Procedia,2011,4(2):1878-1885.
[7] YAN S P,ZHANG L,AI P,et al. CO₂ absorption by using a low-cost solvent:biogas slurry produced by anaerobic digestion of biomass[J]. Energy Procedia,2013,37:2172-2179.
[8] 晏水平,陈竞翱,艾平,等. 低成本CO₂化学吸收法分离技术的研究进展[J]. 现代化工,2012,32(10):25-28. YAN Shuiping,CHEN Jingao,AI Ping,et al. Progress in chemical absorption technology for low-cost CO₂ removal[J]. Modern Chemical Industry,2012,32(10):25-28.
[9] MA'MUN S,SVENDSEN H F,HOFF K A,et al. Selection of new absorbents for carbon dioxide capture[J]. Energy Conversion and Management,2007,48(1):251-258.
[10] EIDE-HAUGMO I,BRAKSTAD O G,Hoff K A,et al. Marine biodegradability and ecotoxicity of solvents for CO₂-capture of natural gas[J]. International Journal of Greenhouse Gas Control,2012,9(7):184-192.
[11] 贺清尧,王文超,蔡凯,等. 减压浓缩对沼液CO₂吸收性能和植物生理毒性的影响[J]. 农业机械学报,2016(2):200-207. HE Qingyao,WANG Wenchao,CAI Kai,et al. Effect of vacuum cncentration on CO₂ absorption performance and phytotoxity of biogas slurry[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(2):200-207.
[12] NOTZ R,ASPRION N,Clausen I,et al. Selection and pilot plant tests of new absorbents for post-combustion carbon dioxide capture[J]. Chemical Engineering Research & Design,2007,85(4):510-515.
[13] 晏水平,陈竞翱,徐明亮,等. 自然型氨基酸及其钾盐的CO₂吸收和再生特性[J]. 环境科学,2012,33(6):1971-1978. YAN Shuiping,CHEN Jingao,XU Mingliang,et al. Performance of CO₂ absorption and regeneration by using natural amino acid and potassium salts[J]. Environmental Sciences,2012,33(6):1971-1978.
[14] ANDREIA S L GOUVEIA,LILIANA C TOMÉ,ISABEL M MARRUCHO. Towards the potential of cyano and amino acid-based ionic liquid mixtures for facilitated CO₂,transport membranes[J]. Journal of Membrane Science,2016,510:174-181.
[15] HIREMATH V,JADHAV A H,LEE H,et al. Highly reversible CO₂ capture using amino acid functionalized ionic liquids immobilized on mesoporous silica[J]. Chemical Engineering Journal,2015,287:602-617.
[16] 蔡凯. 沼液的CO₂吸收机理及吸收性能强化研究[D]. 武汉:华中农业大学,2015. CAI Kai. Research on CO₂absorption mechanism and absorption performance enhancing of biogas slurry[D]. Wuhan:Huazhong Agricultural University,2015.
[17] 晏水平,陈竞翱,贺清尧,等.氨基酸盐吸收剂的沼气CO₂吸收特性[J].同济大学学报(自然科学版),2012,40(2):127-133. YAN Shuiping,CHEN Jingao,HE Qingyao,et al. Performance of CO₂ absorption by using novel acid salts[J]. Journal of Tongji University (Natural Science Edition),2012,40(2):127-133.
[18] FANG M X,MA Q H,WANG Z,et al. A novel method to recover ammonia loss in ammonia-based CO₂ capture system ammonia regeneration by vacuum membrane distillation[J]. Greenhouse Gases Science & Technology,2015,5:487-498.
[19] 李宇虹,陈清. 设施果类蔬菜土壤EC值动态及盐害敏感性分析[J]. 中国蔬菜,2014(2):15-20. LI Yuhong,CHEN Qing. Analysis of dynamically EC value and salt sensitivity of fruit vegetables in facility[J]. China Vegetables,2014(2):15-20.
[20] YAN S P,FANG M X,ZHANG W F,et al. Experimental study on the separation of CO₂,from flue gas using hollow fiber membrane contactors without wetting[J]. Fuel Processing Technology,2007,88(5):501-511.
[21] RICHTER E,ROLLER E,KUNKEL U,et al. Phytotoxicity of wastewater-born micropollutants——characterisation of three antimycotics and a cationic surfactant[J]. Environmental Pollution,2016,208:512-522.
[22] WANG Y,WANG J,ZHAO X,et al. The inhibition and adaptability of four wetland plant species to high concentration of ammonia wastewater and nitrogen removal efficiency in constructed wetlands[J]. Bioresource Technology,2015,202:198-205.
[23] BATES E D,MAYTON R D,IOANNA NTAI A,et al. CO₂ Capture by a task-specific ionic liquid[J]. Journal of the American Chemical Society,2002,124(6):926-927.
[24] 周作明,郭冰松,吕碧洪,等. 氨基酸离子液体水溶液吸收及解吸二氧化碳机理[J]. 中国科学:化学,2015(7):83-90. ZHOU Zuoming,GUO Bingsong,LV Bihong,et al. Absorption/desorption mechanism of carbon dioxide capture into amino acid ionic liquid aqueous solution[J]. Scientia Sinica:Chimica,2015(7):83-90.
[25] PADHY R N,RATH S. Probit analysis of carbamate-pesticide-toxicity at soil-water interface to N₂-fixing cyanobacterium cylindrospermum sp[J]. Rice Science,2015,22(2):89-98.
[26] HUANG H M,LIU J H,WANG S F,et al. Nutrients removal from swine wastewater by struvite precipitation recycling technology with the use of Mg₃(PO₄)₂ as active component[J]. Ecological Engineering,2016,92:111-118.
[27] HAN C,WANG Z,YANG W,et al. Effects of pH on phosphorus removal capacities of basic oxygen furnace slag[J]. Ecological Engineering,2016,89:1-6.
[28] MUSVOTO E V,EKAMA G A,WENTZEL M C,et al. Extension and application of the three-phase weak acid/base kinetic model to the aeration treatment of anaerobic digester liquors[J]. Water S A,2000,26(4):417-438.

外源吸收剂对沼液CO₂吸收及农业应用的影响

Effect of exogenous absorbents addition on CO₂ absorption performance of biogas slurry and its agricultural application

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