Biological phosphate and nitrogen removal in a biofilm sequencing batch reactor

Garzón-Zúñiga, Marco A.; González‐Martínez, Simón

doi:10.2166/wst.1996.0384

Cited by 19 publications

(11 citation statements)

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“…The growth carrier may be fixed, a moving bed or in suspension. All options offer the advantages of up to 50% higher biomass retention than activated sludge, the lack of requirement for sludge settling, and the space saving achieved through the use of a single reactor tank (Garzon-Zuniga and Gonzalez-Martinez, 1996;Jabari et al, 2014); advantages that may favor use at small scale works.…”

Section: Traditional Ebpr Systems and Recent Enhancementsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

402

204

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The removal of phosphorus (P) from domestic wastewater is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger wastewater treatment plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise. Smaller treatment plants often do not have these luxuries, which is problematic because there is concern that P releases from small treatment systems may have greater environmental impact than previously believed. Here P-removal technologies are reviewed with the goal of determining which treatment options are amenable to small-scale applications. Significant progress has been made in developing some technologies for small-scale application, namely sorptive media. However, as this review shows, there is a shortage of treatment technologies for P-removal at smaller scales, particularly sustainable and reliable options that demand minimal operating and maintenance expertise or are suited to northern latitudes. In view of emerging regulatory pressure, investment should be made in developing new or adapting existing P-removal technologies, specifically for implementation at small-scale treatment works.

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Section: Traditional Ebpr Systems and Recent Enhancementsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

402

204

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“…78 Zuniga and Martinez reported an efficient phosphate removal and complete nitrification using SBBR. 37 According to Wei et al, partial nitrification was successfully achieved and maintained in an SBBR. 105 Although fixed-bed reactors have been shown to be capable of treating a variety of wastewaters, the real-world applications of SBBRs are limited due to several drawbacks of the system itself.…”

Section: Sequencing Batch Biofilm Reactor (Sbbr)mentioning

confidence: 99%

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

Chaali

Naghdi

Brar

et al. 2018

J of Chemical Tech & Biotech

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Growing demand for efficient wastewater treatment systems is spurring on the development of new technologies. Biofilm‐based reactors can be used for the treatment of a variety of wastewaters and these reactors are resistant to toxic environments. Bioreactors, such as sequencing batch biofilm and moving bed biofilm are advanced techniques to treat various types of wastewaters with diverse operating conditions. Ammonium oxidizing bacteria, nitrite oxidizing bacteria and Anammox (anaerobic ammonium oxidation) bacteria are reported to be responsible for nutrient removal. In recent decades, the performance of these systems has been studied widely and compared for a number of wastewater treatment applications. In general, they are particularly suitable for high‐rate nitrification and nitrogen removal. The efficiency of these reactors has been confirmed in the laboratory and large‐scale plants. Their efficiency depends on the surface area of the biocarrier, the filling percentage volume of biofilm carriers, organic loading and diffused aeration supply. Chemical oxygen demand removal of 50–98% was reported for <12 h hydraulic retention time, 0.2 to 6.5 mg L−1 dissolved oxygen concentration and temperature range 15–35 °C. Also, the ratio of nitrate to ammonium conversion was from 0.2 to 90 and N2 conversion was from 0 to 8.5 mg. This review studied each of these bioreactors in the removal of nutrients (nitrogen, phosphorus and oxygen) from different wastewaters and compared them to conventional treatment. The review also includes the relevant studies on laboratory and pilot‐scale bioreactors to enhance their performance and reduce their costs. © 2018 Society of Chemical Industry

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“…They detected anoxic zones in the foam carrier materials in which simultaneous denitrification occurred. Garzón-Zniga et al [8] observed that denitrification was effectively achieved in the biofilm reactor resulting from simultaneous denitrification within the biofilm during the aerobic phase. Lindemann [9] studied the simultaneous nitrification and denitrification process in a oneplate rotating disc reactor and successfully compared these results with those of a mathematical model.…”

Section: Aao Processmentioning

confidence: 99%

Test of Porous Ceramic Material for the Immobilisation of Predominant Nitrifying Bacteria and for the Improvement of the AAO Process

Lee

Choi

Wiesmann³

2004

Engineering in Life Sciences

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The efficiency of nitrification in a fixed bed reactor was compared to that found in an activated sludge reactor to determine their sensitivity to changing loads and lower temperatures. Two structurally identical lab-scale systems, using the anaerobic/anoxic/ aerobic (AAO) process to remove nitrogen and phosphorus simultaneously, were operated in parallel with secondary clarifiers and sludge return. The first aerobic system was operated as an activated sludge reactor, the second system as a fixed bed reactor. 3± -P were achieved for both systems. However, the system with an aerobic fixed bed reactor was characterised by the following advantages over the system with an activated sludge reactor: a shorter time to reach almost complete nitrification, a higher nitrification rate at higher loads of NH 4 + -N and a lower sensitivity of nitrification at lower temperatures down to 12 C.

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Biological phosphate and nitrogen removal in a biofilm sequencing batch reactor

Cited by 19 publications

References 0 publications

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

Test of Porous Ceramic Material for the Immobilisation of Predominant Nitrifying Bacteria and for the Improvement of the AAO Process

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