Effect of fermentation liquid from food waste as a carbon source for enhancing denitrification in wastewater treatment

Zhang, Yongmei; Wang, Xiaochang C.; Cheng, Zhe; Li, Yu-You; Tang, Jialing

doi:10.1016/j.chemosphere.2015.09.036

Cited by 145 publications

(52 citation statements)

References 32 publications

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“…At the same time, the methanogenesis must be prevented to reduce the VFA consumption from methanogens . To date, various methods based on the aforementioned principles have been investigated, which included plentiful pretreatment methods (Zhang et al, 2016;Fu et al, 2015), optimization of key operation parameters (Jiang et al, 2013;Chen and Wu, 2010;Chen et al, 2013a;Luo et al, 2014), and addition of methanogen inhibitor Chen et al, 2013b). However, all of the above-mentioned researches were based on adjusting pH to alkalinity or weak acidity by adding a large amount of NaOH or HCl.…”

Section: Introductionmentioning

confidence: 98%

“…The generated volatile fatty acid (VFA) from anaerobic fermentation of ES and FW have been widely considered as a resource utilization of transforming ''waste" into ''treasure" (Zhang et al, 2016), and have been an excellent carbon source for wastewater biological nutrient removal (Feng et al, 2009). Recently, cofermentation has been an more attractive method compared with sole FW and sole ES fermentation as it can simultaneously deal with two wastes in one facility, which can not only reduce facility construction investment, dilute potential hazardous compounds, guarantee balanced nutrients, but also promote synergistic effects of microorganisms (Chen and Wu, 2010;Chen et al, 2013a).…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of volatile fatty acid production by co-fermentation of food waste and excess sludge without pH control: The mechanism and microbial community analyses

Guo

Hong

et al. 2016

Bioresource Technology

174

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Enhancement of volatile fatty acid production by co-fermentation of food waste and excess sludge without pH control: The mechanism and microbial community analyses

Guo

Hong

et al. 2016

Bioresource Technology

174

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“…c) Wastewater must be rich in biodegradable carbon to enable high carbon load to anaerobic digestion without carbon deficiency for nutrient removal. Latter condition is the biggest obstacle as typical wastewater doesn't contain excess carbon and many WWTPs experience carbon limitations even without elevated carbon removal in primary sedimentation [10]. Removal of nitrogen from digester liquor via deammonification process opens new field for WWTP energy consumption optimization in main line.…”

Section: Introductionmentioning

confidence: 99%

Towards energy neutrality of wastewater treatment plants via deammonification process

2017

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Abstract. Energy neutrality of wastewater treatment plants is possible with constant and consistent optimization and implementation of new technologies. In recent years new process called deammonification has been discovered and implemented in treatment of side streams rich in nitrogen. With its implementation on wastewater treatment plants it is possible to remove nearly all nitrogen from side stream (even 30% of overall nitrogen load) in less energy consuming way. Additionally, thanks to lower nitrogen load to main stream reactors it is possible to optimize them to further lower energy consumption. This article presents simulation studies of deammonification implementation and main stream reactor optimization in case of medium Polish WWTP (115 000 p.e.). With removal of 20% of nitrogen in side stream via deammonification and subsequent main line optimization it is possible to save 5000 euro/year by lowering sludge retention time, oxygen concentration in main stream reactors. When additional COD is precipitated in primary clarifiers with iron coagulants, 55 000 euro/year can be saved in case of energy costs which states for most of the energy costs. However, when coagulant and disposal costs are included savings are on the level of 25 000 euro/year.

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“…Removing nitrogen from sewage is one of the main goals of the wastewater treatment plant [Zhang Y. et al 2016]. The denitrification process, i.e.…”

Section: Introductionmentioning

confidence: 99%

Removal of Nitrogen Compounds from Wastewater in SBR Reactors with Brenntaplus VP1

Smyk

Ignatowicz

2018

J. Ecol. Eng.

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The paper presents the efficiency of nitrogen removal from wastewater using Brenntaplus VP1 as an external carbon source. The study was conducted during the municipal wastewater treatment process in two independent activated sludge chambers of SBR type. One of the chambers contained glycerol as the source of easily available organic compounds. The study showed that the use of Brenntaplus VP1 as the external carbon source during wastewater treatment resulted in a higher efficiency of nitrogen removal than in the reactor without the external carbon source applied, resulting in low level of the COD value in the treated wastewater. There was a significant acceleration of the denitrification process as compared to the control reactor.

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Effect of fermentation liquid from food waste as a carbon source for enhancing denitrification in wastewater treatment

Cited by 145 publications

References 32 publications

Enhancement of volatile fatty acid production by co-fermentation of food waste and excess sludge without pH control: The mechanism and microbial community analyses

Enhancement of volatile fatty acid production by co-fermentation of food waste and excess sludge without pH control: The mechanism and microbial community analyses

Towards energy neutrality of wastewater treatment plants via deammonification process

Removal of Nitrogen Compounds from Wastewater in SBR Reactors with Brenntaplus VP1

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