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Nan Chen
China University of Geosciences
102Publications
18H-index
1,099Citations
Publications 102
Newest
#1Linlin MaH-Index: 1
#2Nan ChenH-Index: 18
view all 6 authors...
Abstract Groundwater contaminated by hexavalent chromium (Cr(VI)) has posed severe threat to the environment and public health. Although heterotrophic bioremediation has been known as an efficient approach, little is explored on mineral nutrient source addition such as phosphorus minerals. In this study, the stabilization and sustainability of phosphorus minerals for providing phosphorus has been investigated, and the enhancement of Cr(VI) removal by mixed bacterial consortium coupled with phosp...
#1Linlin MaH-Index: 1
#2Nan ChenH-Index: 18
view all 0 authors...
Abstract Chromium(VI) contaminated groundwater has become an increasingly prominent problem due to its extensive application in industry. Based on the easy-loss defect of microbial in practical application and previous research on the coupling enhancement of Cr(VI) bioreduction by phosphorus minerals, Microbial-Phosphorus minerals-Alginate (MPA) immobilized particles were proposed and investigated in this study. The feasibility of MPA immobilized particles were proved, with the higher reduction ...
#1Yang DengH-Index: 1
#2Nan ChenH-Index: 18
Last.Yu GaoH-Index: 5
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Abstract This study presented a novel alternating-anode electrochemical system (AAES) based on single electrolytic cell for the treatment of nitrogen-containing refractory organic wastewater (NOW). The core of AAES lies in the alternating working of iron anode and DSA anode to integrate different electrochemical processes. The biologically treated landfill leachate (BTLL) was selected as a practical NOW for assessing the performance of AAES. The results indicated that after 140 min of electrolyt...
#1Yang YuH-Index: 2
#2Yang Yu (SEU: Southeast University)
Last.Zhenya ZhangH-Index: 32
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Abstract This study explored the effects of three macroelement cations (Fe, Ca and Al) in sewage sludge on P mobility and speciation in the resultant hydrochar by using hydrothermal carbonization (HTC). The three metal ions were added into the sludge individually or together to probe P speciation in hydrochar and mechanisms involved during HTC. All the three metal ions demonstrated significant effects on P immobilization during HTC, among which Al was the most efficient effector, yielding 93% an...
#1Zhengyuan Feng (China University of Geosciences)H-Index: 1
#2Nan Chen (China University of Geosciences)H-Index: 18
Last.Yu Gao (SDUST: Shandong University of Science and Technology)H-Index: 5
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Abstract Ferric chloride modified lotus stem-based porous carbon (FeCl 3 -LSPC) was synthesized for the removal of bromate from aqueous solutions. The adsorbent characterization indicated that the BET surface area and pore volume were enlarged by the modification of FeCl 3 , at the same time, the reductive functional group of C-OH was enhanced in the FeCl 3 -LSPC. The FeCl 3 -LSPC exhibited greater bromate removal performance in a wide pH range compared to other absorbents. The mechanisms of bro...
#1Yongjie Liu (China University of Geosciences)H-Index: 1
#2Nan Chen (China University of Geosciences)H-Index: 18
Last.Miao Li (THU: Tsinghua University)H-Index: 21
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ABSTRACTNitrate contamination is a risk to human health and may cause eutrophication, whereas H2S is an undesirable constituent in biogas. In order to better understand denitrification using gaseous H2S as electron donor, this study investigated denitrification at different molar ratios of sulfur and nitrogen (S/N ratios) and H2S dosages. Although nitrate continued to decrease, a lag in sulfate generation was observed, implying the generation of sulfide oxidizing intermediates, which accumulated...
#1Tingting Hou (China University of Geosciences)
#2Nan Chen (China University of Geosciences)H-Index: 18
Last.Chuanping Feng (China University of Geosciences)H-Index: 32
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Abstract The use of rice bran as carbon and microbial sources has the potential to enhance the groundwater denitrification performance. This research investigated the effects of rice bran dosage, filling modes and biofilm carriers’ types on the nitrate-contaminated groundwater remediation through batch and a series of column studies. NO 3 − removal rate increased as the rice bran increase in batch studies; however, the highest total nitrogen removal efficiency of 96.2% was achieved at 7 d with 1...
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