Combined ultrafiltration and suspended pellets for lead removal

Li, Chi-Wang; Liang, Yang-Min; Chen, Yiming

doi:10.1016/j.seppur.2005.04.005

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…The flux and rejection of the fabricated NF270 membrane was studied using a crossflow NF system as shown in Figure 1. The NF270 membrane was initially compacted at a transmembrane pressure difference of 6 bar with DI water for about 1 h. The effective membrane surface area was 42 cm 2 . The NF experiments were then performed using printing wastewater at an operating pressure and temperature set at 5 bar and 24 ˚C, respectively.…”

Section: Nf Membrane Performance Evaluationmentioning

confidence: 99%

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Performance of Nanofiltration Membrane for Printing Wastewater Treatment

Cheah

Ramlee

Desa

et al. 2018

AMST

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Almost every manufacturing process is the major origin of wastewater with certain characteristic. Printing facility provides a wide range of waste component that is harmful to the environment and people. Those harmful waste component contains high concentration of heavy metals and dye. This paper presents one of the most promising methods to remove the heavy metals and dyes from a printing wastewater before discharging to the environment. The feasibility of commercially available NF270 membrane to treat both heavy metals and dye was thoroughly investigated. The study was carried out using a cross-flow nanofiltration membrane system at operating pressure and temperature set at 5 bar and 24 ˚C, respectively. Experimental results showed that the permeate flux of NF270 is decreased from 6.2 to 5.0 L/m2.h after 1-h operation. Whilst, the rejection of both iron and zinc ions could be obtained up to 96.9% and 97.8%, respectively. Additionally, almost complete elimination of colour (99.6%) could be achieved using NF270 membrane. Thus, it can be concluded that the commercial NF270 membrane is promising in removing both heavy metal ions and dye from printing wastewater.

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Section: Nf Membrane Performance Evaluationmentioning

confidence: 99%

“…The impacts include depletion of nonrenewable resources, threatening the survivability of the ecosystem, heavy pollution to environment, and eventually leads to backlash on human lifespan. One of the major contributor in polluting the environment is printing industry [1][2].…”

Section: Introductionmentioning

confidence: 99%

Performance of Nanofiltration Membrane for Printing Wastewater Treatment

Cheah

Ramlee

Desa

et al. 2018

AMST

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“…The concentration of Pb in the urban atmosphere, such as Beijing and Tianjin, decreased in recent years due to the use of Pb free gasoline, although the Pb content is still at a high level, ranging from 100 to 180 ng m -3 [18,19]. Soils on the sides of highway and some farmlands are vulnerable to be polluted by Pb because of traffic emission and waste water irrigation.…”

Section: Leadmentioning

confidence: 99%

Research progress of heavy metal pollution in China: Sources, analytical methods, status, and toxicity

et al. 2012

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Heavy metal pollution is one of the most serious environmental problems in China and a large number of people are threatened by heavy metal pollution. Extensive damage to human organs, such as liver, kidney, digestion system, and nervous system can be caused by uptake of excess heavy metals. Heavy metals in the environment can originate from both natural and anthropogenic sources. Although contamination of heavy metals has been known to be a severe environmental problem for decades, it is still getting worse in recent years and there are few feasible approaches to resolve this problem. Due to their high toxicity, prevalent existence and persistence in the environment, lead (Pb), mercury (Hg), cadmium (Cd), chromium (Cr) and arsenic (As) are commonly considered as the priority heavy metals which should be concerned and their emission should be controlled in China. This paper reviewed the pollution of heavy metals in China, focusing on the following four aspects: current status of heavy metal pollution in China, sources of heavy metals in China, toxicity and potential risk, and possible reduction strategies.

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Crayfish shell biochar modified with magnesium chloride and its effect on lead removal in aqueous solution

Zhang

Yan

et al. 2020

Environ Sci Pollut Res

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Combined ultrafiltration and suspended pellets for lead removal

Cited by 6 publications

References 13 publications

Performance of Nanofiltration Membrane for Printing Wastewater Treatment

Performance of Nanofiltration Membrane for Printing Wastewater Treatment

Research progress of heavy metal pollution in China: Sources, analytical methods, status, and toxicity

Crayfish shell biochar modified with magnesium chloride and its effect on lead removal in aqueous solution

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