Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution
The current study was focused on the evaluation of the performance of a modified flocculant (PEI-T) for the removal of turbidity and heavy metals from wastewater. Thioglycolic acid was introduced into the molecular chain of cationic flocculant polyethyleneimine (PEI) through an amidation reaction to...
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IWA Publishing
2021
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oai:doaj.org-article:0a311afd73d4405381477b70e00a82a92021-11-06T07:18:27ZExperimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution1606-97491607-079810.2166/ws.2020.306https://doaj.org/article/0a311afd73d4405381477b70e00a82a92021-08-01T00:00:00Zhttp://ws.iwaponline.com/content/21/5/2075https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The current study was focused on the evaluation of the performance of a modified flocculant (PEI-T) for the removal of turbidity and heavy metals from wastewater. Thioglycolic acid was introduced into the molecular chain of cationic flocculant polyethyleneimine (PEI) through an amidation reaction to form a new flocculant PEI-T. Results revealed that: (a) PEI-T and PEI had similar turbidity removal effect, but PEI-T had a good function of catching heavy metal copper and mercury; (b) when Cu2+ and turbidity-causing substances coexist in a water sample, Cu2+ and turbidity-causing substances promote the removal of each other and the residual concentration of Cu2+ and turbidity decrease further; and (c) the presence of Ca2+ and Mg2+ can promote the removal of copper ions by PEI-T. HIGHLIGHTS Modified flocculant (PEI-T) was evaluated for removal of turbidity and heavy metals from wastewater.; Thioglycolic acid was introduced into the molecular chain of cationic flocculant polyethyleneimine (PEI) to form a new flocculant, PEI-T.; These flocculants had similar turbidity removal effect.; Cu2+ and turbidity-causing substances promote their removal when Cu2+ and turbidity-causing substances coexist.;Wang Jin-xiRajendra Prasad SinghIWA Publishingarticleheavy metals removalmodified flocculantpeitgaturbidityWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 5, Pp 2075-2083 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
heavy metals removal modified flocculant pei tga turbidity Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 |
| spellingShingle |
heavy metals removal modified flocculant pei tga turbidity Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Wang Jin-xi Rajendra Prasad Singh Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution |
| description |
The current study was focused on the evaluation of the performance of a modified flocculant (PEI-T) for the removal of turbidity and heavy metals from wastewater. Thioglycolic acid was introduced into the molecular chain of cationic flocculant polyethyleneimine (PEI) through an amidation reaction to form a new flocculant PEI-T. Results revealed that: (a) PEI-T and PEI had similar turbidity removal effect, but PEI-T had a good function of catching heavy metal copper and mercury; (b) when Cu2+ and turbidity-causing substances coexist in a water sample, Cu2+ and turbidity-causing substances promote the removal of each other and the residual concentration of Cu2+ and turbidity decrease further; and (c) the presence of Ca2+ and Mg2+ can promote the removal of copper ions by PEI-T. HIGHLIGHTS
Modified flocculant (PEI-T) was evaluated for removal of turbidity and heavy metals from wastewater.;
Thioglycolic acid was introduced into the molecular chain of cationic flocculant polyethyleneimine (PEI) to form a new flocculant, PEI-T.;
These flocculants had similar turbidity removal effect.;
Cu2+ and turbidity-causing substances promote their removal when Cu2+ and turbidity-causing substances coexist.; |
| format |
article |
| author |
Wang Jin-xi Rajendra Prasad Singh |
| author_facet |
Wang Jin-xi Rajendra Prasad Singh |
| author_sort |
Wang Jin-xi |
| title |
Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution |
| title_short |
Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution |
| title_full |
Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution |
| title_fullStr |
Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution |
| title_full_unstemmed |
Experimental study on the performance of modified flocculant (PEI-T) for removal of turbidity and heavy metals from aqueous solution |
| title_sort |
experimental study on the performance of modified flocculant (pei-t) for removal of turbidity and heavy metals from aqueous solution |
| publisher |
IWA Publishing |
| publishDate |
2021 |
| url |
https://doaj.org/article/0a311afd73d4405381477b70e00a82a9 |
| work_keys_str_mv |
AT wangjinxi experimentalstudyontheperformanceofmodifiedflocculantpeitforremovalofturbidityandheavymetalsfromaqueoussolution AT rajendraprasadsingh experimentalstudyontheperformanceofmodifiedflocculantpeitforremovalofturbidityandheavymetalsfromaqueoussolution |
| _version_ |
1718443775528796160 |