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A novel strategy for gas mitigation during swine manure odour treatment using seaweed and a microbial

Madhavaraj Lavanya, Ho-Dong Lim, Kong-Min Kim, Dae-Hyuk Kim, Balasubramani Ravindran, Gui Hwan Han

《环境科学与工程前沿（英文）》 2020年第14卷第3期 doi: 10.1007/s11783-020-1230-4

摘要： Comprehensive mitigation of gas emissions from swine manure was investigated. Additives addition for mitigation of gas from the manure has been developed. Sargassum horneri, seaweed masking strategy controlled gas by 90%-100%. Immediate reduction in emitted gas and improving air quality has been determined. Microbial consortium with seaweed completely controlled gas emissions by 100%. Gas emissions from swine farms have an impact on air quality in the Republic of Korea. Swine manure stored in deep pits for a long time is a major source of harmful gas emissions. Therefore, we evaluated the mitigation of emissions of ammonia (NH3), hydrogen sulfide (H2S) and amine gases from swine manure with biological products such as seaweed (Sargassum horneri) and a microbial consortium (Bacillus subtilis (1.2 × 109 CFU/mL), Thiobacillus sp. (1.0 × 1010 CFU/mL) and Saccharomyces cerevisiae (2.0 × 109 CFU/mL)) used as additives due to their promising benefits for nutrient cycling. Overall, seaweed powder masking over two days provided notable control of over 98%-100% of the gas emissions. Furthermore, significant control of gas emissions was especially pronounced when seaweed powder masking along with a microbial consortium was applied, resulting in a gas reduction rate of 100% for NH3, amines and H2S over 10 days of treatment. The results also suggested that seaweed powder masking and a microbial consortium used in combination to reduce the gas emissions from swine manure reduced odour compared with that observed when the two additives were used alone. Without the consortium, seaweed decreased total volatile fatty acid (VFA) production. The proposed novel method of masking with a microbial consortium is promising for mitigating hazardous gases, simple, and environmentally beneficial. More research is warranted to determine the mechanisms underlying the seaweed and substrate interactions.

关键词： Seaweed Consortium Mitigation Ammonia H₂S Volatile fatty acids (VFAs)

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海洋渔业碳汇及其扩增战略

唐启升,刘慧

《中国工程科学》 2016年第18卷第3期页码 68-73 doi: 10.15302/J-SSCAE-2016.03.011

摘要：

本文介绍了海洋渔业碳汇和碳汇渔业的定义、研究现状、问题及技术需求。与林业碳汇比较结果表明，海洋渔业碳汇不仅有高效的特性，还有扩增的潜质。为此，提出海洋渔业碳汇扩增对策建议，主要包括：查明我国海洋渔业碳汇潜力及动态机制；大力发展以海水养殖为主体的碳汇渔业；加强近海自然碳汇及其环境的养护和管理；实施相应的渔业碳汇扩增工程建设，促进环境友好型水产养殖业发展。

关键词：海洋渔业碳汇碳汇渔业碳汇扩增养护和管理贝藻养殖

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Sonication and grinding pre-treatments on

Kit Wayne Chew, Pau Loke Show, Yee Jiun Yap, Joon Ching Juan, Siew Moi Phang, Tau Chuan Ling, Jo-Shu Chang

《环境科学与工程前沿（英文）》 2018年第12卷第4期 doi: 10.1007/s11783-018-1040-0

摘要：

Effects of sonication and grinding pretreatment on agarose quality were observed.

Successful agarose extraction with direct PEG method without the need to dry agar.

FTIR spectra and the characteristics peaks in agarose are explained.

Improvements in gel strength and sulfate content properties in agarose samples.

关键词： Agarose Gelidium Pretreatment Seaweed Sonication

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抗多种污染的仿海藻全亲水自漂浮太阳能光热蒸发器 Article

文驰宇, 郭洪爽, 朱迎男, 白浩宇, 赵维强, 王新生, 杨静, 曹墨源, 张雷

《工程（英文）》 2023年第20卷第1期页码 153-161 doi: 10.1016/j.eng.2021.06.029

摘要：

强亲水材料可以在太阳能驱动的海水蒸馏中实现快速的液态水运输和盐结晶溶解。然而，强亲水材料在水中饱和吸水，通常具有与水相近甚至大于水的密度，无法独立自漂浮，从而难以将热量集中在空气/水界面进行界面蒸馏。自然界中，具有内部微气泡的海藻可以漂浮在水面以保证吸收太阳能，从而进行光合作用。受此启发，本研究开发了一种全亲水自漂浮（SIFS）的太阳能光热蒸发器。蒸发器中密集填充的空心玻璃微球赋予蒸发器独立自漂浮和隔热的性能，不需要额外提供浮力支撑，能将热量集中在空气/水界面。两性离子磺基甜菜碱凝胶作为黏合剂和涂层，使蒸发器具有全亲水性质，从而保证持续的水运输，溶解潜在的盐结晶，克服油污染、微生物腐蚀和蛋白质吸附。凭借其独特的全亲水自漂浮性质和优异的抗污性能，该蒸发器有望为新型功能材料的设计和解决复杂环境下光热海水蒸馏的实际问题提供新的思路。

关键词：超亲水仿生自漂浮抗污太阳能蒸发器