Selective adsorption and recovery of volatile fatty acids from fermented landfill leachate by activated carbon process

AbstractRecently, there are increased efforts by municipals and researchers to investigate the potential of utilizing municipal solid wastes (MSW) for resources recovery. In many parts of developing countries, MSW is mostly collected for disposal with little emphasis on resources recovery. However, the MSW has high organic and moisture contents, and are suitable substrates for anaerobic digestion (AD) process to recover biogas for energy and digestate which can be used as fertilizers or for soil amendments. Resources recovery from the AD process consists of four metabolic stages; hydrolysis, acidogenesis, acetogenesis, and methanogenesis. These metabolic stages can be affected by several factors such as the nature of substrates, accumulation of volatile fatty acids, and ammonia inhibition. In this review, different optimization strategies towards resources recoveries such as pre-treatment, co-digestion, trace elements supplementation, optimization of key parameters and the use of granular activated carbon are discussed. The review reveals that the currently employed optimization strategies fall short in several ways and proposes the need for improvements.

Download Full-text

Synthesis of hybrid magnetic molecularly imprinted polymers for the selective adsorption of volatile fatty acids from anaerobic effluents

Polymer International ◽

10.1002/pi.6026 ◽

2020 ◽

Vol 69 (9) ◽

pp. 847-857

Author(s):

Marina C Tonucci ◽

Oscar F H Adarme ◽

Sérgio F de Aquino ◽

Bruno Eduardo L Baeta ◽

César Ricardo T Tarley

Keyword(s):

Fatty Acids ◽

Molecularly Imprinted Polymers ◽

Volatile Fatty Acids ◽

Selective Adsorption ◽

Molecularly Imprinted ◽

Imprinted Polymers ◽

Magnetic Molecularly Imprinted Polymers

Download Full-text

Comparative facilitation of activated carbon and goethite on methanogenesis from volatile fatty acids

Bioresource Technology ◽

10.1016/j.biortech.2020.122801 ◽

2020 ◽

Vol 302 ◽

pp. 122801 ◽

Cited By ~ 5

Author(s):

Suyun Xu ◽

Wanqiu Zhang ◽

Liuquan Zuo ◽

Zihao Qiao ◽

Pinjing He

Keyword(s):

Fatty Acids ◽

Activated Carbon ◽

Volatile Fatty Acids

Download Full-text

Optimization of feed and extractant concentration for the liquid–liquid extraction of volatile fatty acids from synthetic solution and landfill leachate

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2020.07.011 ◽

2020 ◽

Vol 90 ◽

pp. 190-202

Author(s):

Sameena Begum ◽

Vijayalakshmi Arelli ◽

Gangagni Rao Anupoju ◽

Sridhar S ◽

Suresh K. Bhargava ◽

...

Keyword(s):

Fatty Acids ◽

Landfill Leachate ◽

Volatile Fatty Acids ◽

Liquid Extraction ◽

Extractant Concentration ◽

Liquid Liquid Extraction ◽

Synthetic Solution

Download Full-text

Bioconversion of mature landfill leachate into biohydrogen and volatile fatty acids via microalgal photosynthesis together with dark fermentation

Energy Conversion and Management ◽

10.1016/j.enconman.2021.115035 ◽

2021 ◽

pp. 115035

Author(s):

Haowen Feng ◽

Chihe Sun ◽

Chaofan Zhang ◽

Haixing Chang ◽

Nianbing Zhong ◽

...

Keyword(s):

Fatty Acids ◽

Landfill Leachate ◽

Volatile Fatty Acids ◽

Dark Fermentation ◽

Mature Landfill Leachate

Download Full-text

Unravelling a microbial synergy to boost caproate production via carboxylates chain elongation with ethanol

HKIE Transactions ◽

10.33430/v26n2thie-2018-0041 ◽

2019 ◽

Vol 26 (2) ◽

pp. 63-71

Author(s):

Ling Leng ◽

Ying Wang ◽

Peixian Yang ◽

Takashi Narihiro ◽

Masaru Konishi Nobu ◽

...

Keyword(s):

Fatty Acids ◽

Volatile Fatty Acids ◽

Microbial Consortia ◽

Chain Elongation ◽

Desulfovibrio Vulgaris ◽

Rrna Gene ◽

Selective Enrichment ◽

Microbial Network ◽

Cost Efficient ◽

Rrna Gene Sequencing

Chain elongation of volatile fatty acids for medium chain fatty acids production (e.g. caproate) is an attractive approach to treat wastewater anaerobically and recover resource simultaneously. Undefined microbial consortia can be tailored to achieve chain elongation process with selective enrichment from anaerobic digestion sludge, which has advantages over pure culture approach for cost-efficient application. Whilst the metabolic pathway of the dominant caproate producer, Clostridium kluyveri, has been annotated, the role of other coexisting abundant microbiomes remained unclear. To this end, an ethanol-acetate fermentation inoculated with fresh digestion sludge at optimal conditions was conducted. Also, physiological study, thermodynamics and 16 S rRNA gene sequencing to elucidate the biological process by linking the system performance and dominant microbiomes were integrated. Results revealed a possible synergistic network in which C. kluyveri and three co-dominant species, Desulfovibrio vulgaris, Fusobacterium varium and Acetoanaerobium sticklandii coexisted. D. vulgaris and A. sticklandii (F. varium) were likely to boost the carboxylates chain elongation by stimulating ethanol oxidation and butyrate production through a syntrophic partnership with hydrogen (H2) serving as an electron messenger. This study unveils a synergistic microbial network to boost caproate production in mixed culture carboxylates chain elongation.

Download Full-text

МЕТАБОЛИТЫ ПРОБИОТИЧЕСКИХ БАКТЕРИЙ ОТВЕЧАЮТ ЗА ЭФФЕКТИВНОСТЬ ДЕЙСТВИЯ ПРОБИОТИКА "ПРОФОРТ®"

10.33845/0033-3239-2019-68-9-10-45-47 ◽

2019 ◽

Keyword(s):

Fatty Acids ◽

Volatile Fatty Acids ◽

Broiler Chicks ◽

Bacillus Sp

МЕЛИКИДИ В.Х., ТЮРИНА Д.Г., СЕЛИВАНОВ Д.Г., НОВИКОВА Н.И. ООО «БИОТРОФ», Санкт-Петербург Аннотация: Приведены данные исследования методом газожидкостной хроматомасс-спектрометрии метаболитов, синтезируемых пробиотическими бактериями, входящими в состав кормовой добавки «Профорт®». Проведен опыт в условиях интенсивного промышленного птицеводства по применению кормовой добавки «Профорт®» (50 тыс. голов бройлеров в группе). Среди метаболитов пробиотических штаммов Enterococcus sp. и Bacillus sp. обнаружены такие полезные вещества, как молочная кислота, уксусная, пропионовая и другие короткоцепочечные (летучие) жирные кислоты, активные пептиды. Результаты зоотехнического опыта показали, что при скармливании бройлерам пробиотика «Профорт®» (500 г/т) живая масса при убое в 40 дней была выше контроля на 6,9%, конверсия корма улучшилась на 3,0%, а европейский индекс продуктивности бройлеров - на 5,69%. Ключевые слова: ПРОБИОТИКИ, МЕТАБОЛИТЫ, ЛЕТУЧИЕ ЖИРНЫЕ КИСЛОТЫ, ЦЫПЛЯТА-БРОЙЛЕРЫ,ПРОДУКТИВНОСТЬ, PROBIOTICS, METABOLITES, VOLATILE FATTY ACIDS, BROILER CHICKS,PRODUCTIVITY

Download Full-text