Development and application of kinetic model on biological anoxic/aerobic filter

Kim, Youngnoh; Tanaka, Kazuhiro; Lee, Yong-Woo; Chung, Jinwook

doi:10.1016/j.chemosphere.2007.08.042

Cited by 12 publications

(6 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Soil filtration, as an environmentally friendly on-site process, has been widely applied and promoted for years in many developing countries, especially in those rural areas where water pollution is severe (Yuan et al , 2013). The biofilter process has gradually been adopted in the small communities, since it is simple to manage and able to remove organic materials and suspended solids (SS) simultaneously (Kim et al , 2008). An economical and ecological method to treat wastewater by CWs has been developed over the past decades (Peng et al , 2014; Malin et al , 2016).…”

Section: Introductionmentioning

confidence: 99%

The assessment of an integrated bio-filter systems for the wastewaters treatment in arid regions (Touggourt, Algeria)

Amiri

Hartani²,

Zeddouri

2019

MEQ

View full text Add to dashboard Cite

Purpose The purpose of this paper is to assess the water quality parameters resulting on: First, the flow direction in biofilters (ascending or descending), second, constructed wetland (CW) with local plant species and third, the combined system for the removal of organic matter and nutrients pollutants from water in arid regions. Design/methodology/approach An integrated system is presented and tested in situ with a vertical up-flow and down-flow biofilters. Two configurations schemes are followed by a three separated horizontal subsurface CWs: two planted with Phragmites australis, Typha latifolia and the third unplanted. The methodology is based on a statistical analysis of the collected data. Findings The present experiment demonstrated that the wetlands planted with P. australis and T. latifolia showed the highest removal. Moreover, T. latifolia performed better than P. australis for most of the parameters, notably in the first system, whereas the wetland efficiency indicated that P. australis contributed greatly to the removal of TP in the first system and NO3-N in the second system. In general, for the highest removal efficiencies of the combined biofilters and wetlands system, the present study demonstrated that the first system performed better than the second for all the parameters. Originality/value The originality of the research is that it compares in situ two biofilter systems: vertical up-flow and down-flow biofilters. To avoid the effects of domestic wastewater that is discharged directly without treatment in the Oued Righ channel or in the lake, this integrated system can be one of the alternatives for wastewater treatment, as it reveals the need to protect aquatic ecosystems in arid regions, and can decrease the risks to human health and the environment.

show abstract

Section: Introductionmentioning

confidence: 99%

The assessment of an integrated bio-filter systems for the wastewaters treatment in arid regions (Touggourt, Algeria)

Amiri

Hartani²,

Zeddouri

2019

MEQ

View full text Add to dashboard Cite

show abstract

“…Biofilter aerobik pada dasarnya merupakan sistem biakan melekat yang dapat digunakan sebagai proses pengolahan air limbah (Hait & Mazumder, 2009). Proses biofilter telah secara berangsur-angsur digunakan pada masyarakat kecil, mengingat mudah dikelola dan dapat menghilangkan material organik dan padatan tersuspensi secara bersamaan (Kim et al, 2008;Ji et al, 2014). Biofilter aerobik tercelup (SABs) diketahui memberikan retensi padatan lebih baik dibandingkan dengan reaktor lumpur aktif (Gálvez et al, 2009;Metcalf & Eddy, 2003;Ferraz et al, 2014).…”

Section: Tinjauan Teoritisunclassified

Aplikasi Teknologi Pengolahan Air Limbah Domestik Menggunakan Kombinasi Biofilter Aerobik Media Plastik Sarang Tawon Dan Biofilter Media Kerikil Dengan Aliran Ke Atas

Azmi¹,

Danumihardja²,

Said³

2019

JAI

View full text Add to dashboard Cite

Air limbah domestik memberikan kontribusi besar terhadap pencemaran air di perkotaan karena penerapan pengolahannya belum optimal. Penelitian kombinasi biofilter aerobik dengan media plastik sarang tawon (MPST) dan media kerikil (MK) dilakukan untuk mengolah air limbah domestik. Pemilihan proses mempertimbangkan baku mutu dan sasaran penerapannya untuk skala individual. Kombinasi pada HRT 24 jam menurunkan COD, NH4-N, TSS masing-masing 84,09%, 81,62%, 93,9%. Pada HRT 36 jam, menurunkan COD, NH4-N, TSS masing-masing 76,68%, 97,67%, 85,04%. Efisiensi dipengaruhi oleh variasi HRT dan perlakuan pada HRT 24 jam untuk meningkatkan kinerja reaktor, yaitu perubahan HRR dan tipe aerasi. Perubahan HRR dari 1 ke 0,25 (aerasi samping) meningkatkan kinerja reaktor dalam menurunkan COD dari 81,5% menjadi 88,05%, NH4-N dari 77,23% menjadi 81,7%, TSS dari 93,43% menjadi 96,35%. Perubahan tipe aerasi dari aerasi samping menjadi aerasi merata (HRR 0,25) meningkatkan kinerja reaktor dalam menurunkan NH4-N dari 81,7% menjadi 89,56%, sementara COD turun dari 88,05% menjadi 82,22% dan TSS turun dari 96,35% menjadi 90,66%. HRT 36 jam dipilih sebagai HRT optimum dengan aerasi merata dan HRR 0,25. Hal ini terkait efisiensi penurunan NH4-N yang sangat tinggi karena DO 2 mg/L dengan aerasi merata dan dalam HRT yang lebih lama, serta semua parameter berada di bawah baku mutu.Kata kunci: air limbah domestik; biofilter aerobik; efisiensi penurunan; HRT

show abstract

“…ν i-1 is the approach velocity(m/h) at a definite time(i-1). The headloss for each infinitesimal-element is calculated by Kozeny-Carman [6] equation. The filter bed can be simplified to consists of CSTR of equivalent size in series, in other word, the entire filter layer L is divided into △L 1 ,△L 2…… △L n (shown in Figure .2) .…”

Section: Physical Filtration Equation Of Clean Filter Bedmentioning

confidence: 99%

Modeling of Headloss Development in Biological Aerated Filter (<i>BAF</i>) —Ⅰ. Equations Development

Liu¹,

Li²,

Chen³

et al. 2011

AMM

View full text Add to dashboard Cite

Biological Aerated Filter (BAF) has been global applied in secondary and tertiary wastewater treatment process in the past decades. As the increasing application of BAF, it was required to get deeper understanding of the operational discipline, parameter optimization and structural characteristics of BAF to improve the treatment efficiency and to operate stability constantly. In this paper, a physical filtration equation of clean filter bed was established firstly based on an average porosity ratio equation and Kozeny-Carman filtration equation. And then the influence of biological oxidation and biofilm development were introduced, of which the Eckenfelder mode and oxygen transfer were considered, to induce a hybrid physical- biologically equation to describe the headloss development in the BAF.

show abstract

Development and application of kinetic model on biological anoxic/aerobic filter

Cited by 12 publications

References 20 publications

The assessment of an integrated bio-filter systems for the wastewaters treatment in arid regions (Touggourt, Algeria)

The assessment of an integrated bio-filter systems for the wastewaters treatment in arid regions (Touggourt, Algeria)

Aplikasi Teknologi Pengolahan Air Limbah Domestik Menggunakan Kombinasi Biofilter Aerobik Media Plastik Sarang Tawon Dan Biofilter Media Kerikil Dengan Aliran Ke Atas

Modeling of Headloss Development in Biological Aerated Filter (<i>BAF</i>) —Ⅰ. Equations Development

Contact Info

Product

Resources

About