Adsorption-filtration characteristics of melt-blown polypropylene fiber in purification of reclaimed water

Liu, Li; Xu, Zhonghou; Song, Changchun; Gu, Qingbao; Sang, Yimin; Lu, Guilan; Hu, Hualong; Li, Fasheng

doi:10.1016/j.desal.2006.02.014

Cited by 26 publications

(14 citation statements)

References 12 publications

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“…As described in the literature [25], there may be four mechanisms governing the filtration performance of date-palm surface fiber in the wastewater treatment process, namely: impaction, interception, diffusion and adsorption. Impaction and interception are the dominant filtration mechanisms of blocking large particles.…”

Section: Filtration Mechanismsmentioning

confidence: 99%

Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment

Riahi

Mammou

Thayer

2009

Journal of Hazardous Materials

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Section: Filtration Mechanismsmentioning

confidence: 99%

Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment

Riahi

Mammou

Thayer

2009

Journal of Hazardous Materials

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“…Polypropylene pellets have a large surface area, high void space, and are prone to be colonized with bilofilm. These qualities made them useful in improving the biologic removal of nitrogen and phosphorus (Yu et al, 2005;Liu et al, 2006). However, so far there have been few or no reports of the application of biofilm carriers, including polypropylene pellets, in constructed wetlands (Boley et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Nitrogen and Phosphorus Removal in Pilot-Scale Vertical Subsurface Flow-Constructed Wetlands Using Polypropylene Pellets

Tang

Huang

et al. 2009

Environmental Engineering Science

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Removal of nitrogen and phosphorus is known to be somewhat problematic in vertical subsurface flow (VSSF)-constructed wetlands. In this pilot-scale study, two planted (Typha latifolia L.[cattail]) VSSF-constructed wetlands A (with polypropylene pellets) and B (without polypropylene pellets) and one unplanted control C (without polypropylene pellets) were designed to test the contribution of polypropylene pellets to nitrogen and phosphorus removal in eutrophic river water in Tianjin, China. The ranking order of nutrient removal for above tested wetlands was A Ͼ B Ͼ C. In contrast to wetland B, polypropylene pellets in wetland A enhanced the ammonia-nitrogen, total nitrogen, soluble reactive phosphorus, and total phosphorus removal: 13.38%, 8.90%, 9.29%, and 8.25%, respectively. Analysis of the aboveground biomass and nutrient content of the stems and leaves of the T. latifolia indicated that the polypropylene pellets restrained the increase in biomass, but stimulated assimilation of nitrogen and phosphorus into stems and leaves. Additional total nitrogen and phosphorus removal of approximately 29.38 gN/m 2 and 13.47 gP/m 2 by aboveground T. latifolia biomass with polypropylene pellets, respectively, was observed. Outflow water quality of wetland with polypropylene pellets was generally better than without polypropylene pellets during the whole period of the test run. Polypropylene pellets improved nitrogen and phosphorus removal, especially in August, when it apparently stimulated wetland microbial activity.

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“…The large surface area of a polyhedron hollow polypropylene ball created by high void spaces is prone to colonization with a biofilm. This improves the biological removal efficiency regarding nitrogen and phosphorus in aerated biofilters (Liu et al 2006;Yu et al 2005). However, so far there are only a few reports concerning the application of plastic biofilm carriers including PHPB in constructed wetland applications (Chen et al 2006).…”

mentioning

confidence: 99%

Nutrient Removal in Pilot-Scale Constructed Wetlands Treating Eutrophic River Water: Assessment of Plants, Intermittent Artificial Aeration and Polyhedron Hollow Polypropylene Balls

Tang

Huang

Scholz

et al. 2008

Water Air Soil Pollut

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Seven experimental pilot-scale subsurface vertical-flow constructed wetlands were designed to assess the effect of plants [Typha latifolia L. (cattail)], intermittent artificial aeration and the use of polyhedron hollow polypropylene balls (PHPB) as part of the wetland substrate on nutrient removal from eutrophic Jinhe River water in Tianjin, China. During the entire running period, observations indicated that plants played a negligible role in chemical oxygen demand (COD) removal but significantly enhanced ammonia-nitrogen (NH 4 -N), nitrate-nitrogen (NO 3 -N) total nitrogen (TN), soluble reactive phosphorus (SRP) and total phosphorus (TP) removal. The introduction of intermittent artificial aeration and the presence of PHPB could both improve COD, NH 4 -N, TN, SRP and TP removal. Furthermore, aerated wetlands containing PHPB performed best; the following improvements were noted: 10.38 g COD/ m 2 day, 1.34 g NH 4 -N/m 2 day, 1.04 g TN/m 2 day, 0.07 g SRP/m 2 day and 0.07 g TP/m 2 day removal, if compared to non-aerated wetlands without PHPB being presented.

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Adsorption-filtration characteristics of melt-blown polypropylene fiber in purification of reclaimed water

Cited by 26 publications

References 12 publications

Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment

Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment

Enhancement of Nitrogen and Phosphorus Removal in Pilot-Scale Vertical Subsurface Flow-Constructed Wetlands Using Polypropylene Pellets

Nutrient Removal in Pilot-Scale Constructed Wetlands Treating Eutrophic River Water: Assessment of Plants, Intermittent Artificial Aeration and Polyhedron Hollow Polypropylene Balls

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