Journal of Cleaner Production
·
2022
·
IF 11.072
Changwei Zhang,Zhihao Si,Lihe Zhang,Jieyi Wen,Changsheng Su,Huidong Chen,Jianbo Zhao,Di Cai,Xu Zhang,Peiyong Qin
The treatment of high chemical oxygen demand (COD) organic wastewater is one of the major technical bottlenecks for the industrialization of second-generation biobutanol production . An effective strategy to decrease the wastewater discharge in biobutanol fermentation process is broth recycling (BR). Nevertheless, the conventional BR process suffered from server organic-acid by-products inhibition, causing low butanol yield. In this study, to solve the barrier, active carbon (AC) adsorption system was hybrid with the acetone-butanol-ethanol (ABE) fermentation and ex - situ product separation (ESPR) units. After fermentation and pervaporation , organic acids that remaining in the ABE-separated broth were partially adsorbed onto AC so that improve the continuity and efficiency of the BR process. The physicochemical characterizations of different types of commercial ACs and the organic acids adsorption efficiency was evaluated by analyzing the static and dynamic adsorptions kinetics. When adopting the DD-type AC (code C299105), the better adsorbent for organic acids removal, 87.50% of fermentative wastewater can be saved whilst the ABE concentrations were also kept constantly at 15.22 ± 0.45 g L −1 in the following cycles of fermentation, and the ABE productivity was almost no changed (0.21 ± 0.01 g L −1 h −1 ) after 3 cycles of operation. Therefore, the AC assisted ESPR process is an attractive method for ABE production with low wastewater discharge.
研究领域:
生物工程
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Cleaner Production
·
2025
·
IF 10
Jiangang Qu,Jiaqi Ling,Canyu Jiang,Hui Liu,Yehu Lu,Shouying Wu
Enhancing dye utilization and reducing dye emissions are essential goals for the textile industry, achievable by immobilizing dyes on a carrier to minimize dye consumption and wastewater generation. This study introduces silicon-based nano pigment particles (SNPPs) synthesized by immobilizing reactive dyes onto silica nanospheres via (3-aminopropyl) triethoxysilane (APTES). The structure-property relationship between the reactive dye structure and the performance of SNPPs is systematically elucidated. SNPPs achieved adsorption rates exceeding 80 % for K-type reactive dyes (capacity >80 mg/g) and over 90 % for M-type, KN-type, and X-type dyes (capacities >110 mg/g). The particles exhibited high electronegativity (>-60 mV), excellent dispersibility, and stability, with bi-functional reactive dyes demonstrating superior performance due to enhanced covalent interactions. Application in cotton fabric printing and dyeing yielded vivid colors (color strength up to 10.37) and excellent fastness properties (rubbing: 3–4, washing: 4–5, light: 3–5 grades). Furthermore, cotton fabric dyed with recycled SNPPs showed consistent colorimetric performance and color fastness properties across five regeneration cycles. This innovation offers a scalable, eco-friendly solution for textile coloration, aligning with industrial sustainability goals.
研究领域:
纺织科学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2022
·Vol. 102
·期 15
·7136-7143
·
IF 4.125
Kangyuan Long,Tonghao Zhang,Jae W Park,Joodong Park,Tao Yin
BACKGROUND Washing is an essential process in surimi production, from which a large amount of wastewater is generated. Due to the increasing pressure of environmental protection, it is an urgent technical requirement for surimi manufacturers to reduce water usage while maintaining the quality of surimi. In this study, composition, structure and gelling properties of grass carp surimi prepared with a modified washing process (MWP) were investigated. Intermediate dehydration with various compression ratios were utilized between two washing cycles. RESULTS Water usage and wastewater discharge were reduced significantly by 33% and 38%, respectively, when MWP was applied. As the compression ratio increased, composition of fat, cathepsins, transglutaminase and heme proteins in surimi decreased gradually. Yield, protein content and the major protein pattern of surimi were not changed, but surface hydrophobicity gradually decreased. As the compression rate increased to 1:2.0, textural values and water holding capacity of the corresponding surimi gel decreased gradually, while whiteness increased and then remained unchanged. At a higher compression ratio (>1:1.5), aggregated network and excessive free water were observed in the surimi gel. Composition and gelling properties of the MWP surimi with a compression ratio of 1:1.2–1:1.5 were equal to those of the surimi prepared under conventional three-cycle washing. CONCLUSION Results indicated that MWP demonstrated its great potential in surimi production by dramatically reducing the usage of cold water and discharge of wastewater without scarifying surimi quality. © 2022 Society of Chemical Industry.
研究领域:
食品科学
·
环境工程
·
水产加工
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Yucheng Lv,Tao Yang,Xinmei Hou,Zhi Fang,Karthikeyan Rajan,Yao Di,Wenkun Peng,Yiqun Deng,Tongxiang Liang
Yttrium-stabilized zirconia@reduced graphene oxide (YSZ@rGO) nanofibers with uniform porous structure were prepared by electrospinning and thermal reduction process. On this basis, PEDOT/YSZ@rGO electrode was fabricated via the electrodeposition for sensitive detection of methyl parathion (MP). Among this, YSZ exhibited outstanding adsorption, rGO improved electron mobility and PEDOT enhanced electrocatalytic properties. The electrochemical impedance spectroscopy (EIS), square wave voltammetry (SWV) and cyclic voltammetry (CV) demonstrated the successful preparation of the sensor. The pH value of the buffer, the pre-deposition time of the working electrode, and the adsorption time have been optimized. Under the optimum condition, the detection limit of the sensor is 1.57 ng·mL −1 (S/N = 3), and the linear detection ranges from 5 to 4000 ng·mL −1 , which is superior to most related electrochemical sensors . Furthermore, the sensor exhibits good anti-interference, reproducibility, stability, and satisfactory recovery in real sample, indicating wide commercial applications in detecting food safety and monitoring wastewater emission.
研究领域:
材料科学
·
电化学
·
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）