Hu Yang

Nanjing University

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Rongshi Cheng

Nanjing University

Aimin Li

State Key Laboratory of Pollution Control and Resource Reuse

Aimin Li

Dalian University of Technology

Han Yan

Nanchang Normal University

Zhen Yang

Guilin University of Technology

Boqiang Gao

Henan Agricultural University

Haijiang Li

Yanshan University

Pan Hu

Nanjing University

Zhiliu Wang

Zhongyuan University of Technology

Hua Wei

Shandong University

Cooperative Institutions

Nanjing University

Chinese Academy of Sciences

State Key Laboratory of Pollution Control and Resource Reuse

University of Chinese Academy of Sciences

Zhejiang University

Peking University

South China University of Technology

Sichuan University of Science and Engineering

Huazhong University of Science and Technology

Southwest University of Science and Technology

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Evaluation of the starch-based flocculants on flocculation of hairwork wastewater

The Science of The Total Environment (2017)

Qing Bo Du Hua Wei Aimin Li Hu Yang

Cationic polymerization

Turbidity

Ammonium chloride

10.1016/j.scitotenv.2017.06.029

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Citations (66)

Color Characteristics of Blue to Yellow Beryl from Multiple Origins

Gems & Gemology (2020)

Hu Yang Lu Ren

Gem beryl is a significant gem species, including color varieties such as emerald, aquamarine, heliodor, goshenite, morganite, and red beryl.Blue to yellow beryl

10.5741/gems.56.1.54

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Citations (13)

Coagulation Properties of Biodegradable Chitosan-CTA Coagulants in Turbidity Removal

Journal of Environmental Engineering (2013)

Xin Huang Yabo Shang Hu Yang Yi‐Chun Chen Zhen Yang

In this present study, strongly cationic coagulants were prepared by modifying chitosan with 3-chloro-2-hydroxypropyl trimethyl ammonium (CTA). The coagulation properties of this cationic chitosan (chitosan-CTA) were systematically examined in laboratory and pilot scale studies. At the laboratory scale, the effects of coagulant dosage, temperature, initial turbidity of untreated water, pH, and salinity were investigated by a jar test using kaolin suspension as synthetic water. Compared with several conventional coagulants, chitosan-CTA showed a lower dosage requirement of approximately 0.05 mg/L, but higher turbidity removal efficiency of approximately 93.3%. Moreover, raw water from the Zhenjiang part of the Yangtze River in China was used as test water for further investigation on a pilot scale. The influences of dosage, sedimentation time, and mechanical mixing rate on the coagulation properties were studied by an orthogonal test and the optimal experimental conditions were obtained. The dosage of coagulants was 1.1 mg/L, sedimentation time was 20 min, and the mechanical mixing rate of the first triple coagulative sedimentation tank was 200 rpm in this case. The effect of the substitution degree of CTA on the coagulation properties was also investigated at the laboratory and pilot scales. Above all, the coagulation experiments indicated that the cationic chitosan-based coagulants showed good coagulation performance in turbidity removal.

Turbidity

Sedimentation

10.1061/(asce)ee.1943-7870.0000709

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Citations (4)

Composition determination of binary polymer mixtures by size exclusion chromatography with light scattering detection

Chinese Journal of Polymer Science (2010)

Chengguo Liu Hongfeng Xie Zhiliu Wang Hu Yang Rongshi Cheng

10.1007/s10118-010-0017-7

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Citations (4)

Analysis of composition complicated binary mixture by quantitative SEC

Frontiers of Chemistry in China (2008)

Zhengnian Chen Hongfeng Xie Hu Yang Zhiliu Wang Rongshi Cheng

Diluent

Sample (material)

Molar mass distribution

Constant (computer programming)

10.1007/s11458-008-0057-5

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Citations (0)

Flocculation of both anionic and cationic dyes in aqueous solutions by the amphoteric grafting flocculant carboxymethyl chitosan-graft-polyacrylamide

Journal of Hazardous Materials (2013)

Zhen Yang Hu Yang Ziwen Jiang Tao Cai Haijiang Li

Polyacrylamide

Cationic polymerization

10.1016/j.jhazmat.2013.03.053

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Citations (274)

Effects of Macromolecular Compatibilizers Containing Epoxy Groups on the Properties of Linear Low-Density Polyethylene/Magnesium Hydroxide Composites

Industrial & Engineering Chemistry Research (2010)

Zhen Yang Chengang Zhou Jun Cai Han Yan Xin Huang

The effects of two kinds of macromolecular compatibilizers, poly(ethylene-co-glycidyl methacrylate) (PE-co-PGMA) and poly(ethylene-co-methyl acrylate-co-glycidyl methacrylate) (PE-co-PMA-co-PGMA), both containing epoxy groups, on the properties of linear low-density polyethylene (LLDPE)/magnesium hydroxide (MH) composites were studied in this work. On the basis of the experimental results from the mechanical test, thermal stability analysis, and scanning electron microscopy (SEM) observation, both PE-co-PGMA and PE-co-PMA-co-PGMA were demonstrated to be efficient compatibilizers. In order to investigate the compatibilization mechanism, further characterization by particle size and a particle size distribution analyzer, SEM-energy dispersive X-ray spectroscopy (EDX), and attenuated total reflection-Fourier transform infrared (ATR-FTIR) were carried out, respectively. It was found that the epoxy groups on the compatibilizers played a very important role in modification of the LLDPE/MH system. The compatibilizers conglutinated tightly on the surface of MH though ring-open reactions between the epoxy group and hydroxyl of MH; furthermore, the long organic chains of compatibilizers entwisted with LLDPE through van der Waals force. The fracture morphology observation of LLDPE/MH composites also showed that MH particles were closely united with polymer matrix through the compatibilizers. Therefore, the compatibility between MH and LLDPE was enhanced, which improved the final performances of the LLDPE/MH composites further.

Linear low-density polyethylene

Glycidyl methacrylate

Compatibilization

10.1021/ie100610j

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Citations (16)

Scale-inhibition and flocculation dual-functionality of poly(acrylic acid) grafted starch

Journal of Environmental Management (2018)

Qing Du Yawen Wang Aimin Li Hu Yang

Acrylic acid

Turbidity

Settling