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The electrical conductivity of traditional medical fibers was enhanced through in-situ polymerization of dopamine, resulting in the fabrication of a PET@PDA flocking fabric using electrostatic flocking technology. The response surface methodology was employed to optimize the parameters of the flocking process, and regression models were established to analyze the relationship between flocking process parameters and flocking density, specific surface area. An evaluation was conducted on the appearance, mechanical properties, cell compatibility, and blood compatibility of PET@PDA flocked fabric. The results demonstrate that PET@PDA10-2 flocking fabric exhibits high vertical orientation, significant porosity, excellent compression recovery performance (98.10% recovery rate under 50% strain), as well as favorable cytocompatibility and blood compatibility with remarkable coagulant promoting ability. Therefore, the electrostatically flocked PET@PDA fabric holds promising potential for applications in anticoagulant materials. [ABSTRACT FROM AUTHOR]

Copyright of Industrial Water Treatment is the property of CNOOC Tianjin Chemical Research & Design Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science & Technology of Food Industry is the property of Science & Technology of Food Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Taking the cutting waste liquid after demulsification in a machining plant in Nanchang as the experimental object, the wastewater was pretreated by the combination of coagulation sedimentation and Fenton oxidation, and the factors such as the dosage of wastewater chemicals, pH, and reaction time were studied on the effect of COD in wastewater. The coagulation and precipitation experiment show that: the dosage is 1.3 g/L when polymerized ferric sulfate is used as coagulant, the dosage of the coagulant aid polyacrylamide is 30 mg/L, the pH is 8,and the reaction time is 180 min, the COD decreased from 7.66 g/L to 5.6 g/L. The Fenton oxidation experiment show that when the pH is 3,the dosages of H2O2 and Fe2+ are 1.96,27.44 mol/L, respectively, and the COD decrease to 0.99 g/L when the reaction time is 120 min. The coagulation sedimentation-Fenton oxidation combine experiment made the total removal rate of wastewater reach 86.92%,the removal effect is very good, and the additional biochemical reaction could reach the standard. [ABSTRACT FROM AUTHOR]

Aiming at the problem that the fracturing flowback fluid in an oil field still contains more organic pollutants, suspended solids and oil substances after oxidative gel breaking treatment, the combined treatment technology of electrolytic catalytic oxidation-coagulation sedimentation is proposed, and the relevant process parameters are optimized. The optimum process parameters of electrolytic catalytic oxidation treatment are as follows: oxidation voltage is 12 V, reaction time is 50 min, solution pH value is 10 and stirring speed is 500 r/min. The optimum process parameters of coagulation sedimentation treatment are as follows: the composite coagulant FHN-1 is selected, and the recommended dosage is 3 000 mg/L. After the combined treatment of electrolytic catalytic oxidation-coagulation sedimentation, the COD value of fracturing flowback fluid can be reduced to 35.6 mg/L, the suspended solids content(ρ) is as low as 3.4 mg/L, and the oil content(ρ) is as low as 1.5 mg/L, which can meet the requirements of discharge standard. [ABSTRACT FROM AUTHOR]

An SBR reactor was used to analyze the effects of starch-based natural coagulant (SNC) and polymerized aluminum chloride (PAC) on the formation and performance of aerobic granular sludge・ The results showed that SNC and PAC aerobic granular sludge formed at 21 d and 28 d, and matured at 42 d and 56 d, respectively, and the formation effect of SNC enhanced aerobic granular sludge was significant; the appearance and bacterial composition of SNC and PAC aerobic granular sludge were significantly different, and the bacterial composition of SNC aerobic granular sludge was more complex; meanwhile, the removal rate of NH; -N and COD by aerobic granular sludge after maturation of SNC type were as high as 99・ 56% and 96. 22% respectively, which is slightly better than that of PAC type. Compared with PAC, SNC has the advantages of being green, cheap and efficient, and is an effective strategy to enhance the granulation of activated sludge. [ABSTRACT FROM AUTHOR]

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of New Building Materials / Xinxing Jianzhu Cailiao is the property of New Building Materials Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The raw water of R reservoir with Microcystis as the dominant algae and the raw water of J reservoir with Cylindrospermopsis rackiborskii as the dominant algae are taken as the research objects, and the preoxidation coagulation processes are tested respectively. Chlorine dioxide and sodium hypochlorite are used as pre-oxidants, and the mass concentration ratios of 0:1, 1:1 and 2:1 are combined with aluminum sulfate coagulant to analyze the removal effect of pre-oxidation coagulation on algae and organic matter, and an appropriate pre-oxidation dosing strategy is established. The results showed that all the three combinations could improve the effect of algae coagulation. For raw water in R reservoir, chlorine dioxide and sodium hypochlorite are not recommended for pre-oxidation. The raw water of J reservoir using chlorine dioxide and sodium hypochlorite is better than that using sodium hypochlorite alone to remove algae and organic matter. [ABSTRACT FROM AUTHOR]

Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Energy Chemical Industry is the property of Energy Chemical Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Sciencepaper is the property of China Sciencepaper and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to meet the requirements of the suspended solids(SS) and iron concentration in the influent of anaerobic ammonia oxidation process, the coagulation technology was used to pretreat the sludge dewatering solution from anaerobic digestion. Through aeration test and orthogonal test, the optimal aeration intensity, aeration time and coagulation process conditions of anaerobic digestion sludge dewatering liquid were determined. Based on single factor test, the best process conditions were obtained as follows: (250 r/min) 90 s of fast stirring, (90 r/min)120 s of slow stirring, 30 s of coagulant aids dosing time, 15 min of standing time, 20 mg/L of polyaluminium chloride (PAC), 1 mg/L of polyacrylamide (PAM), 7.0 of pH value. At this time, turbidity and total iron removal rates in anaerobic digested sludge dewatering solution were 97.63% and 98.21%, respectively. The effluent treated by coagulation can not only improve the removal effect of pollutants, but also meet the influent requirements of sub-sequent anaerobic ammonium oxidation process. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Tiangong University is the property of Journal of Tianjin Polytechnic University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The oil refinery effluent was dealt with biochemical treatment taking A²/O as a ore, and its quality could reach the comprehensive discharge standard of effluent. The effluent could be recycled by the low pressure multi-effect evaporation system using the low temperature heat of oil refinery, and it was the new measure of energy saving and emission reduction. The silicon and turbidity were the main parameters of evaporation process. The removal effect of silicon and turbidity by softening with lime, magnesium salt precipitation and precipitation by combination coagulant of molysite and aluminium salt were researched. The results indicated that: when he dosage of Ca(OH)2 was 500 mg/L, the removal rate of silicon and turbidity were 79. 2% and 4. 2%, respectively, and when the dosage of MgCl2 was 400 mg/L at the pH value of 10, the removal rate of silicon and turbidity were 91.6% and 74.4%, respectively. The requirement of low temperature multi-effect evaporation system could be achieved, when the dosage of Fe(II / III) Al combination coagulant was 400 mg/L and the removal rate of silicon and turbidity were 91. 9% and 90. 4%, respectively. The residual silicon content and turbidity were 17. 93 mg/L and 3 NTU. [ABSTRACT FROM AUTHOR]

In the process of destabilization and aggregation of aquatic colloidal particles, different mechanisms of agglomerants, coagulants and flocculants were analyzed. Classification and representatives of coagulants and flocculants in water treatment were introduced from such aspects as chemical composition, molecular weight, production source and nature of functional groups. Different technical characteristics between combination effect of flocculants and compound flocculants were put forward. The properties and development of microbial compound flocculants and the combination effect between bioflocclant and other flocculants were investigated. [ABSTRACT FROM AUTHOR]

This paper introduced the source and composition of waste liquid of oil and gas production, and problems existed during coagulation treatment. Based on the mechanism of coagulant combined with the characters of waste liquid, we prepared boron - containing polynuclear inorganic polymer coagulant (BPSAF) , and then synthesized a certain boron - containing polynuclear inorganic - organic polymer coagulant (CPC) by introducing AM and DMDAAC, which contains both polynuclear norganic polyvalent ions and organic polymer chain, and has good stability. Compared with formal coagulant, CPC showed better coagulation effects, and better adaptability to water quality. We also analyzed BPSAF, CPC and raw materials mixture by FTIR, SEM and X-ray diffraction, and the results showed that the CPC prepared is not a mixture of raw materials, but a novel polymer. [ABSTRACT FROM AUTHOR]

Under high temperatures in summer and autumn, the effects of FeCl 3 , PFC, and PAFC on co-manganese oxides filter media for removing ammonium and manganese from surface water were investigated. The results showed that FeCl 3 can be hydrolyzed easily, thus reducing the pH of the water and the residual iron in the water were not conducive to the removal of ammonium and manganese. Transforming the coagulant FeCl 3 into PFC can effectively recover the removal effect of ammonium and manganese. After being pre-treated by PAFC, removal of ammonium and manganese during the filtering operation remained stable and excellent. Simultaneously, the structural characteristics of the filter material were analyzed. Different coagulants caused different changes of shape of filter media. As FeCl 3 is a coagulant, the slow increase in specific surface area is not beneficial to removal of ammonium and manganese. Additionally, the results of FTIR spectra indicated that coagulants have different influences on the group of Fe-OH bonds of filter media. This study provides a theoretical basis for the study of the effects of water quality factors on the removal of ammonium and manganese from surface water.

By the terrestrial ecotoxicological methods of seed germination and root elongation, and with aluminum-based coagulant AlCl3 which was widely used in wastewater- and water treatment as an example, this work studied the toxicological effects of aluminum-based coagulants on representative crops, including radish Raphanus sativus, cabbage Brassica chinensis and wheat Triticum aestivum, over a range of exposure concentrations under the neutral condition (pH= 7.0), with contrast to an acid condition (pH= 4.00). The results indicated that there was a significantly positive correlation between the concentration of AlCl3 and the inhibitory rate of root elongation and seed germination either under pH 7.0 or 4.0 (P < 0.01). Cabbage and wheat was more susceptive to AlCl3 toxicity under acid than under neutral condition, while radish was in adverse. The minimum inhibitory concentration of AlCl3 (< 2.0 mg x L(-1)) was lower under neutral than under acid condition.