Conditioning the alternating aerobic–anoxic process to enhance the removal of inorganic nitrogen pollution from a municipal wastewater in France

Fulazzaky, Mohamad Ali; Abdullah, Noorul Hudai; Yusoff, Abdull Rahim Mohd; Paul, Etienne

doi:10.1016/j.jclepro.2015.03.043

Cited by 45 publications

(10 citation statements)

References 63 publications

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“…The excessive amount of phosphate release from domestic wastewater may lead to degradation of the receiving water, and thus cause eutrophication process [1]. When a water body is enriched with phosphate, it can stimulate the growth of plants and algal blooms making the water to lost its important function and induce adverse effects on human health and environment [2,3].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of phosphate from aqueous solutions using waste mussel shell

et al. 2018

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Excessive amount of phosphate released from wastewater can cause eutrophication to the receiving waters. Adsorption technique has been used to remove phosphate from aqueous solutions. The use of waste mussel shell (WMS) to remove phosphate from aqueous solutions and application of several kinetic and isotherm models to describe the adsorption of phosphate onto WMS were conducted in batch experiments. The phosphate adsorption by the WMS was examined with respect to solute concentration, contact time and adsorbent dose. The phosphate removal efficiencies obtained were 46.7, 57.6, 64.1, 70.8 and 75.2% at 144 h contact time for WMS dosage of 2, 4, 6, 8 and 10 g, respectively. Physical and chemical properties of WMS including surface physical morphology and elemental compositions were characterized. A comparison of kinetic models applied to the phosphate adsorption onto WMS was evaluated for the pseudo-first order and pseudo-second order model. The experimental data fitted very well with the pseudo-second order kinetic model (R2 > 0.984), which indicated the adsorption process was chemisorption. In the isotherm studies, the Langmuir and Freundlich isotherm models were applied. The results indicated that the use of Freundlich equation is well described with the phosphate adsorptions onto WMS (R2 = 0.968), suggesting the heterogeneity of the adsorbent surface. The experimental results suggested the use of WMS as an excellent adsorption material for phosphate removal from aqueous solutions, giving new insights into environmental engineering practices.

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Section: Introductionmentioning

confidence: 99%

Adsorption of phosphate from aqueous solutions using waste mussel shell

et al. 2018

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“…Along with nitrification, a portion of ammonia is assimilated into the cell tissue (synthesis) (Riffat, 2012). Subsequently, nitrate is converted into nitrogen gas by nitrite-oxidizing (denitrifying) bacteria consuming organic substrates in wastewater as the electron donor under anoxic conditions in the RPS, known as denitrification process (Fulazzaky et al, 2015). In this study, the ratio of ammonia nitrogen to total nitrogen of the wastewater feeding varied from 70% to 100% (average 84.03% ± 5.64%), indicating that most of the nitrogen existed in the form of ammonia.…”

Section: Nitrification and Denitrification Efficiencies And Total Nitrogen Removalmentioning

confidence: 72%

A new hybrid sewage treatment system combining a rolled pipe system and membrane bioreactor to improve the biological nitrogen removal efficiency: A pilot study

Bach

Yoon

et al. 2018

Journal of Cleaner Production

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A new hybrid pilot plant configuration based on a modularized rolled pipe system (RPS) combined with a submerged flat sheet membrane bioreactor (MBR) was investigated to enhance the sewage treatment and membrane performance. The system was operated under actual conditions for more than four months, that is, at a constant flow rate of 30 m³/d and with two internal recycling ratios. The results indicate that the hybrid system produces an excellent effluent quality and considerably mitigated membrane fouling. The average concentrations of SS, COD, TN, NH4 + -N, NO3 − -N, and PO4 3--P remained below 2.81, 8.29, 8.77, 0.15, 8.17, and 1.49 mg/L, respectively. It was estimated that the periodic chemical cleaning of the membrane could be extended to approximately six months. The MBR and RPS can virtually complete nitrification and denitrification, respectively. The highest average denitrification rate of the RPS is 116.95 mg NO3-N/(g MLVSS d), with a hydraulic retention time of 1.05 h. Therefore, the RPS-MBR hybrid system has potential to improve the sewage treatability. The emerging RPS technique can obtain high rates of denitrification coupled with a compact design, ease of installation, and small footprint.

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“…Therefore, it is important to remove these substances from surface waters, and especially from drinking water. In recent years, intensive research has been conducted on how to remove these inorganic ions from aqueous solutions [8][9][10]. Known and applied methods include precipitation, ion exchange, and various membrane processes [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Solubility and Selectivity Effects of the Anion on the Adsorption of Different Heavy Metal Ions onto Chitosan

et al. 2020

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The biopolymer chitosan is a very efficient adsorber material for the removal of heavy metal ions from aqueous solutions. Due to the solubility properties of chitosan it can be used as both a liquid adsorber and a solid flocculant for water treatment reaching outstanding adsorption capacities for a number of heavy metal ions. However, the type of anion corresponding to the investigated heavy metal ions has a strong influence on the adsorption capacity and sorption mechanism on chitosan. In this work, the adsorption capacity of the heavy metal ions manganese, iron, cobalt, nickel, copper, and zinc were investigated in dependence on their corresponding anions sulfate, chloride, and nitrate by batch experiments. The selectivity of the different heavy metal ions was analyzed by column experiments.

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Conditioning the alternating aerobic–anoxic process to enhance the removal of inorganic nitrogen pollution from a municipal wastewater in France

Cited by 45 publications

References 63 publications

Adsorption of phosphate from aqueous solutions using waste mussel shell

Adsorption of phosphate from aqueous solutions using waste mussel shell

A new hybrid sewage treatment system combining a rolled pipe system and membrane bioreactor to improve the biological nitrogen removal efficiency: A pilot study

Solubility and Selectivity Effects of the Anion on the Adsorption of Different Heavy Metal Ions onto Chitosan

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