The removal of ammonia from contaminated water by using various solid waste biosorbents

Dey, Subhashish; Charan, Seetalam Sai; Pallavi, U.; Sreenivasulu, Anduri; Haripavan, Nekkanti

doi:10.1016/j.nexus.2022.100119

Cited by 13 publications

(5 citation statements)

References 53 publications

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“…Maintaining the suspension at 25°C through a thermostatic water bath, vigorous mixing was ensured using a magnetic stirrer (approximately 700 rpm). Subsamples of the suspension were extracted at various time intervals (1,3,5,10,20,30,60,90,120, and 180 minutes after the addition of the test) and subsequently centrifuged (10,000×g at 4°C for 1 minute) to obtain the supernatant. The ion concentration in the supernatant was determined using capillary electrophoresis (CAPI-3300; Otsuka Electronics, Osaka, Japan).…”

Section: Adsorption and Desorption Of Ionsmentioning

confidence: 99%

“…Biosorption entails immobilizing pollutants from ecosystems by utilizing organisms or their components as pollutant-binding substances [Kulkarni et al, 2022]. The linchpin to successful biosorption lies in the meticulous selection of a biosorbent [Dey et al, 2022]. An ideal biosorbent should boast a substantial adsorption capacity while readily available in aquatic ecosystems [Pourang and Rezaei, 2021;Michelon et al, 2022;Singh et al, 2020].…”

Section: Introductionmentioning

confidence: 99%

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Comparative Biosorption Proficiency in Intact and Autoclaved Biofilm Matrices

Kurniawan,

Pramudia,

Susanti

et al. 2024

J. Ecol. Eng.

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The urgent need for technological innovation to combat water pollution underscores the significance of biosorption as a potential solution. The success of biosorption hinges on the careful selection of a suitable biosorbent. Biofilms, composed of microbial communities, emerge as a promising alternative due to their expansive adsorption capacity and ready availability. In practical applications, biosorption is often executed at pollutant concentrations lethal to microbes. Consequently, comprehending the biosorption potential of biofilms with deceased microbes becomes imperative. Notably, biofilms with deceased microbes offer the added advantage of minimizing the risk of pathogenic microbial contamination. Despite this, studies are scarce comparing biosorption between intact biofilms and those with deceased microbes. This comparative analysis could enhance the feasibility of biofilms in biosorption as an eco-aquatic technology for alleviating aquatic pollution. This study aims to scrutinize the biosorption characteristics of intact biofilm (with living microbes) and autoclaved biofilm (with deceased microbes). The methods employed for analyzing biosorption characteristics encompass examining electric charge properties, FTIR spectra analysis, ion adsorption, and ion desorption. The model ions chosen for this study are K⁺ (monovalent ion) and Mg²⁺ (divalent ion). Results indicate that the biofilm's electric charge properties and adsorption capacity remain relatively unchanged post-autoclaving. Based on these findings, it can be concluded that biofilms, whether intact or autoclaved, present substantial potential as biosorbents in the advancement of eco-aquatic technology for mitigating water pollution.

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Section: Adsorption and Desorption Of Ionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Biosorption Proficiency in Intact and Autoclaved Biofilm Matrices

Kurniawan,

Pramudia,

Susanti

et al. 2024

J. Ecol. Eng.

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show abstract

“…Under acidic conditions, H + competes with NH 4 + , hindering NH 4 + collection on the adsorbent [ 79 ]. In alkaline environments, there are fewer NH 4 + , decreasing the removal efficiency of ammoniacal nitrogen with the pH increase [ 80 ]. Therefore, NH 4 + adsorption is most favorable under neutral pH conditions [ 81 , 82 ].…”

Section: Nitrogen Removal Processmentioning

confidence: 99%

A Comprehensive Review on Wastewater Nitrogen Removal and Its Recovery Processes

Zhou

Zhu

et al. 2023

IJERPH

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Discharging large amounts of domestic and industrial wastewater drastically increases the reactive nitrogen content in aquatic ecosystems, which causes severe ecological stress and biodiversity loss. This paper reviews three common types of denitrification processes, including physical, chemical, and biological processes, and mainly focuses on the membrane technology for nitrogen recovery. The applicable conditions and effects of various treatment methods, as well as the advantages, disadvantages, and influencing factors of membrane technologies, are summarized. Finally, it is proposed that developing effective combinations of different treatment methods and researching new processes with high efficiency, economy, and energy savings, such as microbial fuel cells and anaerobic osmotic membrane bioreactors, are the research and development directions of wastewater treatment processes.

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“…Not only can it cause the depletion of dissolved oxygen, but eutrophication is also toxic to aquatic life [2,3]. Various wastewater treatment techniques have been implemented for ammonium removal from aqueous solution [4][5][6][7] The technique such as biological nitrification, (bio)electrochemical, stripping, precipitation, and adsorption could be applied as a single or a combination method to remove ammonium nitrogen from wastewater. Among the most competitive ways, the physical removal method using low-cost biosorbent is considered a simple, rapid, and effective technique [5,8].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, it also serves as carbon sink due to its good stability [9,10]. Meanwhile, with relatively high surface area and pore volume, biochar shows a potential sorption ability to various chemical compounds [2,5,11]. Previous studies have demonstrated the potential of biochar as a low-cost biosorbent for removing pollutants from aqueous solution, such as heavy metals [12,13] and organic IOP Publishing doi:10.1088/1755-1315/1182/1/012037 2 pollutants [14].…”

Section: Introductionmentioning

confidence: 99%

Removal of Ammonium by Biochar Derived from Exhausted Coffee Husk (ECH) at Different Carbonisation Parameter

Puari

Rusnam

Yanti

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The present of nitrogen compounds in the form of ammonium (NH4 +) can contribute to serious pollution problems in surface water and groundwater. Among the most competitive ways, the physical removal method using low-cost biosorbent is considered an effective technique. However, compared to heavy metals and organic, less effort has been dedicated to exploring the potential ability of biochar as a biosorbent for ammonium removal. This study was focused on investigating the adsorption capacity of biochar from exhausted coffee husk (ECH) on ammonium in the aqueous solution. The biochar was produced at the different carbonization temperature (400 – 700 °C) and carbonization time (1-4h). The results showed that carbonization temperature of 700 °C during 1h of carbonization time was resulted in the highest adsorption capacity which was 1,13 mg/g of NH4 +. Several characterizations were conducted for observing surface morphological and pores area with scanning electron microscope (SEM) and Brunauer Emmert Teller (BET), respectively. The results showed that the pores were developed with the increasing temperature and resulted in higher absorbance.

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The removal of ammonia from contaminated water by using various solid waste biosorbents

Cited by 13 publications

References 53 publications

Comparative Biosorption Proficiency in Intact and Autoclaved Biofilm Matrices

Comparative Biosorption Proficiency in Intact and Autoclaved Biofilm Matrices

A Comprehensive Review on Wastewater Nitrogen Removal and Its Recovery Processes

Removal of Ammonium by Biochar Derived from Exhausted Coffee Husk (ECH) at Different Carbonisation Parameter

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