Advanced nitrogen removal via nitrite using stored polymers in a modified sequencing batch reactor treating landfill leachate

Liu, Miao; Wang, Shuying; Li, Baikun; Cao, Tianhao; Xue, Tonglai

doi:10.1016/j.biortech.2015.05.013

Cited by 60 publications

(16 citation statements)

References 31 publications

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“…A modified SBR can be made by anaerobic-aerobic-anoxic sequence processes and can be developed in order to use landfill leachate organics fractions. The feature of the modified SBR process is the addition of the anaerobic stage after the feeding, so that microorganisms can store the organic matter and supply a carbon source for endogenous denitrification after the aeration stage [51]. However, denitrification cannot be implemented; hence, ammonia reduction does not achieve high rates.…”

Section: Sequencing Batch Reactor (Sbr)mentioning

confidence: 99%

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

et al. 2016

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Abstract:Municipal solid waste final disposal represents an environmental burden worldwide since landfilling, or open dumping, is still the preferred solution for the end of life of solid discarded materials. This study aims to review the technological innovations applied for landfill leachate treatment, taking into consideration the experiences obtained during the past years and the solutions which have been implemented. The review showed that both biological and physiochemical treatments are not able to achieve the requested water quality level, according to the limits established by regulations, whether applied in a single treatment or multiple treatments. In order to respect sustainable release limits to guarantee environmental protection, the construction of depuration systems and combining biological and physiochemical treatment methods is considered of the utmost importance. The review looks at possible joint applications of different treatment techniques reviewed by other studies and considers the state of the art of current research. Combined technical solutions suggested within the 2016 peer-reviewed papers are presented and discussed as a sustainable way to effectively treat landfill leachate, giving particular attention to feasible solutions for developing countries.

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Section: Sequencing Batch Reactor (Sbr)mentioning

confidence: 99%

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

et al. 2016

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“…On the one hand, the SNDPR could reduce PO 4 3--P and partial TN at low aeration intensity; on the other hand, the post-dentrification could further remove the NO X -(NO 2 --N and NO 3 --N) produced by SNDPR, and thus reducing the carbon demand for denitrifying OHOs and leading to more carbon sources available for SNDPR-PD. For now, post-denitrification driven by PHAs and Gly has been reported for nitrogen removal from landfill leachate treatment (Li et al, 2014;Miao et al, 2015). Landfill leachate contains high amounts of organic substances and low amounts of phosphorus, making it suitable to enrich GAOs to conduct endogenous dentrification (Miao et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…For now, post-denitrification driven by PHAs and Gly has been reported for nitrogen removal from landfill leachate treatment (Li et al, 2014;Miao et al, 2015). Landfill leachate contains high amounts of organic substances and low amounts of phosphorus, making it suitable to enrich GAOs to conduct endogenous dentrification (Miao et al, 2015). Post-denitrification process with/without SNDPR for the treatment of real domestic wastewater with low carbon/nitrogen ratio (C/N, referred to chemical oxygen demand (COD)/total nitrogen (TN)) (≤ 4) without external carbon addition has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Combining simultaneous nitrification-endogenous denitrification and phosphorus removal with post-denitrification for low carbon/nitrogen wastewater treatment

Wang

Zhao

et al. 2016

Bioresource Technology

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“…Numerous studies have been conducted for the treatment of landfill leachate using different approaches such as photoelectrooxidation, modified sequencing batch reactor, microalgae, vermiconversion and so on (Bakar et al 2015; Miao et al 2015; Muller et al 2015; Richards et al 2013; Wang et al 2013). Thus, in this study, the application of biological approach for the treatment of landfill leachate will be investigated since it is more effective, environmental friendly and cost-effective, a locally obtained bacterial strain capable of treating landfill leachate will be applied in a designated ASBR system for the treatment of landfill leachate in terms of ammoniacal nitrogen, COD and heavy metal removal.…”

Section: Introductionmentioning

confidence: 99%

Treatment of landfill leachate using ASBR combined with zeolite adsorption technology

et al. 2016

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Sanitary landfilling is the most common way to dispose solid urban waste; however, improper landfill management may pose serious environmental threats through discharge of high strength polluted wastewater also known as leachate. The treatment of landfill leachate to fully reduce the negative impact on the environment, is nowadays a challenge. In this study, an aerobic sequencing batch reactor (ASBR) was proposed for the treatment of locally obtained real landfill leachate with initial ammoniacal nitrogen and chemical oxygen demand (COD) concentration of 1800 and 3200 mg/L, respectively. ASBR could remove 65 % of ammoniacal nitrogen and 30 % of COD during seven days of treatment time. Thereafter, an effective adsorbent, i.e., zeolite was used as a secondary treatment step for polishing the ammoniacal nitrogen and COD content that is present in leachate. The results obtained are promising where the adsorption of leachate by zeolite further enhanced the removal of ammoniacal nitrogen and COD up to 96 and 43 %, respectively. Furthermore, this combined biological–physical treatment system was able to remove heavy metals, i.e. aluminium, vanadium, chromium, magnesium, cuprum and plumbum significantly. These results demonstrate that combined ASBR and zeolite adsorption is a feasible technique for the treatment of landfill leachate, even considering this effluent’s high resistance to treatment.

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Advanced nitrogen removal via nitrite using stored polymers in a modified sequencing batch reactor treating landfill leachate

Cited by 60 publications

References 31 publications

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

Novel and Conventional Technologies for Landfill Leachates Treatment: A Review

Combining simultaneous nitrification-endogenous denitrification and phosphorus removal with post-denitrification for low carbon/nitrogen wastewater treatment

Treatment of landfill leachate using ASBR combined with zeolite adsorption technology

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