The novel chitosan-amphoteric starch dual flocculants for enhanced removal of Microcystis aeruginosa and algal organic matter

Cui, Jingshu; Niu, Xiaojun; Zhang, Dongqing; Ma, Jinling; Zhu, Xifen; Zheng, Xiaoxian; Zhang, L.; Fu, Mingli

doi:10.1016/j.carbpol.2022.120474

Cited by 23 publications

(5 citation statements)

References 86 publications

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“…Therefore, the adsorption bridging effect of CS-AM during occulation is also signicant under different pH conditions. 60,63…”

Section: Flocculation Properties Of Cs-ammentioning

confidence: 99%

Synthesis of chitosan-based flocculant by dielectric barrier discharge modification and its flocculation performance in wastewater treatment

Wu,

Shen,

Zhao

et al. 2024

RSC Adv.

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“…Therefore, the adsorption bridging effect of CS-AM during occulation is also signicant under different pH conditions. 60,63…”

Section: Flocculation Properties Of Cs-ammentioning

confidence: 99%

Synthesis of chitosan-based flocculant by dielectric barrier discharge modification and its flocculation performance in wastewater treatment

Wu,

Shen,

Zhao

et al. 2024

RSC Adv.

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“…[40,46,71,92] The improvement in forming dense flocs can be attributed to their ability on the improvement of molecular weight (MW) and charge contents. [18]…”

Section: Coagulation/flocculationmentioning

confidence: 99%

“…[15,16] In comparison, starch as one of the second largest natural polymers on our planet offers advantages of low cost (much cheaper than chitosan), flexible modification, abundant presence of hydroxyl functional groups, and eco-friendly approach. [17,18] This carbohydrate which is formed by photosynthesis in plants and annually produced by ≈70 × 10 6 tons, consists of a mixture of two polymers of amylose as well as amylopectin. [19,20] These configurations make it to a suitable material for remediation purposes, as it has received a great attention for removal of pollutants from water and wastewater, [21] including but not limited to the heavy metals such as cadmium, [22] lead, [23] arsenic, [24] pharmaceutical contaminants [25,26] especially antibiotics, [27] dyes, [28,29] and even inorganic contaminants of phosphate, [30] nitrate, and fluoride.…”

Section: Introductionmentioning

confidence: 99%

Starch‐Based Materials as a Natural Compound's Application in Water and Wastewater Treatment: A Systematic Review

Asadi‐Ghalhari,

Usefi,

Mahmoodi

2024

Starch Stärke

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Currently, the application of natural materials is a good alternative to prevent secondary damage to humans and the environment. Therefore, in recent years, much attention has been paid to the use of these degradable and environmentally friendly materials to reduce toxicity and treatment costs. As a natural material, starch offers advantages of low cost, flexible modification, abundant presence of hydroxyl functional groups, and eco‐friendly. These configurations make it to a suitable material for remediation purposes, as it has received a great attention for removal of pollutants from water and wastewater, including but not limited to the heavy metals, pharmaceutical, dyes, and even inorganic contaminants. This work, therefore, aims to systematically evaluate starch‐based materials applications in remediation of water and wastewater media using the appropriate search terms from international databases including PubMed, Science Direct and Google Scholar, and through PRISMA checklist. For this, the publications from 1973 to 2021 are searched. In the initial search, 980 articles are found of which 49 articles are included in the study. Then, the performance of the starch‐based materials for every single study as the pollutant(s) involved is summarized and discussed. The advantages and disadvantages of such application are extracted and a perspective is presented accordingly. This comprehensive review shows that the starch‐based derivatives’ can be potential options in water and wastewater treatment purposes, especially those modified. However, some limitations should be overcoming before scaling of the results.

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“…Infrared spectra of sludge before and after reaction was detected by FTIR (Tensor 27, Bruker, Germany) with the wavelength of 500-4000 cm − 1 . Meanwhile Three-dimensional uorescence excitation emission matrix were analyzed according to Text S1 (Cui et al 2023b).…”

Section: Eps Extraction and Analysismentioning

confidence: 99%

Insight into enhancing the performance of sludge dewatering using a novel flocculant CS–TA prepared through free radical-mediated conjugation

Liu,

Niu,

Zhang

et al. 2024

Environmental Technology

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Flocculation is one of the most signi cant conditioning methods for sludge dewatering. In the present study, a novel occulant CS-TA, which was prepared through free radical-mediated conjugation of tannic acid (TA) and chitosan (CS), was proposed to improve the performance of sludge dewatering. The ndings indicate that the conditioning of CS-TA yielded the best dewatering performance at 30 mg g TS − 1 with water content of 59.78% and capillary suction time of 11.8s, compared to the Wsc of 98.2% and CST of 56.2s in raw sludge. The occulation e ciency of different in uencing factors were evaluated, indicating that CS-TA possessed the capacity for enhancing sludge dewaterability over a wide range of pH. Furthermore, the analysis of particle size implied that the addition of CS-TA favored the formation of larger particles. Meanwhile, the value of zeta potential of sludge was increased form − 24.29 ± 0.49 mV to -17.69 ± 0.35 mV after CS-TA conditioning, suggesting that CS-TA could improve sludge dewatering through charge neutralization, thus accelerating sludge ltration. In addition, extracellular polymer substances (EPS) analysis indicated that the decrease in the polysaccharide (PS) and protein (PN) contents in EPS after CS-TA addition could increase the relative hydrophobicity of sludge, contributing to a decrease in water content. The results of FTIR reinforced the breakdown of hydrophic functional groups of PN and PS, leading to the sludge hydrophobicity. This study provides a comprehensive insights into the exploration of CS-TA for sludge dewatering and the maintenance of ecological security in an ecofriendly way. performance of sludge dewatering. These ndings are expected to advance our understanding for the development a novel CS-TA occulent and optimization of synergestic pretreatment condition for sledge dewatering enhancement.

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The novel chitosan-amphoteric starch dual flocculants for enhanced removal of Microcystis aeruginosa and algal organic matter

Cited by 23 publications

References 86 publications

Synthesis of chitosan-based flocculant by dielectric barrier discharge modification and its flocculation performance in wastewater treatment

Synthesis of chitosan-based flocculant by dielectric barrier discharge modification and its flocculation performance in wastewater treatment

Starch‐Based Materials as a Natural Compound's Application in Water and Wastewater Treatment: A Systematic Review

Insight into enhancing the performance of sludge dewatering using a novel flocculant CS–TA prepared through free radical-mediated conjugation

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