Pilot-scale hybrid bio-diatomite/dynamic membrane reactor for slightly polluted raw water purification

Yu, Zhuoping; Chu, Huaqiang; Cao, Dawen; Ma, Yanqiang; Dong, Bingzhi; Wei, Yong

doi:10.1016/j.desal.2011.09.036

Cited by 35 publications

(13 citation statements)

References 46 publications

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“…In particular, low pressure membranes, including MF and UF, are receiving increasing attention due to their low energy consumption and easy and economic operation. MF/UF can be used on its own for treating drinking water where the feed water concentration is not too high in terms of organic contents [25,26]. However, where the source water is of lower quality, the low level of organic matter removal achieved with UF may not ensure that the treated water will comply with standards (disinfection by-products (DBPs) formation).…”

Section: Performance Of Membrane Plants In Producing Drinking Watermentioning

confidence: 99%

Membrane technology for municipal drinking water plants in China: progress and prospect

Zheng

Liang

et al. 2012

Desalination and Water Treatment

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Frechen (2012) Membrane technology for municipal drinking water plants in China: progress and prospect, Desalination and Water Treatment, 49:1-3, 281-295, A B S T R A C TThe quality of drinking water from the conventional treatment process is not satisfactory, due to serious pollution of China's surface water. The improvement of the existing water treatment plants is the key to ensure the quality of drinking water in China. Membrane processes are gaining importance in water applications as a result of the advances in membrane technology and the increasing requirements on water quality. This study presents the results of the thorough survey of membrane technology for municipal drinking water plants in China. The survey consists of surveys of literature, membrane manufacturers, and water plants employing membrane technology. We examined the historic perspective of membrane technology and analyzed the membrane market in China. Performance of membrane plants in producing drinking water is investigated based on the survey as well. The results demonstrate that low pressure membrane technologies are employed extensively in China. Water plants with large capacity account for primary market share and drive the annual revenue growth. China will become a fast growing membrane market in the long run and Taihu basin region will continue to be the greatest market for new membrane equipment due to its enormous population and rapid economic growth.

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Section: Performance Of Membrane Plants In Producing Drinking Watermentioning

confidence: 99%

Membrane technology for municipal drinking water plants in China: progress and prospect

Zheng

Liang

et al. 2012

Desalination and Water Treatment

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“…The biofilm process is a promising alternative for the pretreatment of raw water because of its potential economic advantages, lower secondary pollution, and less disinfection by-products (DBPs) production (Bruce and Douglas, 2002;Yu et al, 2007;Chu et al, 2011;Qian et al, 2011;Yu et al, 2012;Feng et al, 2013;Han et al, 2013;Zhang et al, 2013). But it is difficult to start up because of the limited growth and enrichment of functional microorganism in the oligotrophic niche (Egli, 2010).…”

Section: Introductionmentioning

confidence: 99%

Startup pattern and performance enhancement of pilot-scale biofilm process for raw water pretreatment

Yang¹,

Feng²,

Yang³

et al. 2014

Bioresource Technology

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“…Operation potential and risk assessment It had been reported that adding nutrients including nitrogen, organic matter and trace nutrient to raw water enhanced the operation performance for pollutants removal in biofilm systems (Ovez et al 2006;Chu et al 2010;Yu et al 2012;Feng et al 2013) and increased the biomass attached on the carrier (Yang et al 2015a). However, as far as the authors know, there are nearly no studies reported the quantitative relationship between pollutants removal performance with the initial feeding nutrients levels in biofilm reactors for raw water pretreatment.…”

Section: Discussionmentioning

confidence: 99%

“…TOC and UV 254 are useful for indicating the levels of organic matters in water, and the latter was usually used to describe the levels of natural humic macromolecular and aromatic organic matter in water (Xu et al 2007;Hong et al 2008;Yu et al 2012;Yang et al 2015a). Figures 1 and S1 showed the removal performance of organic matters in nine reactors at operation period P 1 .…”

Section: Removal Performance Of Organic Mattersmentioning

confidence: 99%

“…Several attractive ways have been published to improve the formation of biofilm and accelerate the startup of biofilm systems, such as nutrients addition (Ovez et al 2006;Chu et al 2010;Qian et al 2011;Yu et al 2012;Feng et al 2013;Yang et al 2015a) and operational optimization (Zhang et al 2014;Yang et al 2014). However, adding nutrients to enhance the operation performance of biofilm reactors for raw water pretreatment is not always satisfactory.…”

Section: Introductionmentioning

confidence: 99%

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Performance improvement of raw water pretreatment process with pre-inoculation biofilm: feasibility and limiting factors

et al. 2016

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The initial formation of biofilm and the removal performance of pollutants in biological pretreatment process for polluted raw water were limited due to the oligotrophic niche in raw water. In this study, the feasibility of using pre-inoculation biofilm formed under nutrients enhanced condition for polluted raw water treatment was analyzed in nine batch reactors. Results showed that the pollutants removal performance of biofilm was improved under nutrients enhanced conditions. Ammonia oxidation rate (AOR) was exponentially increased with the increasing in NH-N levels, and organic matter removal rate (ORR) was positively related to the initial total organic carbon (TOC) concentration. The biofilm formation and microbial diversity were further improved via adding more substrates, seeding river sediment and feeding effluent from a mature biofilm reactor. However, the biofilm formed under higher substrate conditions had higher half-saturation constant values (K ) to both NH-N and TOC, which decreased AOR and ORR values when it was used to treat polluted raw water. The reduction percentage of AOR and ORR showed logarithmic growth modes with the increase in K values. Fortunately, improvement of nutrients flux via accelerating influent replacement could enhance the start-up performance effectively and decrease the operation risk introduced by the changes in substrate affinity.

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Pilot-scale hybrid bio-diatomite/dynamic membrane reactor for slightly polluted raw water purification

Cited by 35 publications

References 46 publications

Membrane technology for municipal drinking water plants in China: progress and prospect

Membrane technology for municipal drinking water plants in China: progress and prospect

Startup pattern and performance enhancement of pilot-scale biofilm process for raw water pretreatment

Performance improvement of raw water pretreatment process with pre-inoculation biofilm: feasibility and limiting factors

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