Article
Engineering, Environmental
Hua Long, Xiaolu Huang, Yang Liao, Jidong Ding
Summary: The study found that factors such as calcination environment and organic compounds in the materials have significant impact on the recovery of Cr (VI) from Ts and CTLs. By utilizing a segmented calcination method with Na2CO3 as a catalyst, the recovery of Cr (VI) can be effectively increased.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Md Ariful Islam Juel, Md Ashikur Rahaman Noyon, Al Mizan, Md Abul Hashem, Md Golam Azam
Summary: This study presents a method of phytoextraction of heavy metals from tannery sludge using Napier grass. Napier grass showed higher accumulation of chromium and an increasing trend of heavy metal gathering by extending the harvesting period. Moreover, Napier grass is a fast-growing tropical grass with high growth tolerance, making it suitable for treating heavy metal-contaminated tannery sludge.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Priyanka Chakraborty, Sampad Sarkar, Sandip Mondal, B. K. Agarwal, Arvind Kumar, Sabyasachi Bhattacharya, Satya Sundar Bhattacharya, Pradip Bhattacharyya
Summary: This study provides new insights into the microbial influence on metal remediation during vermicomposting of tannery waste sludge (TWS). The results suggest that a mixture of TWS and organic waste can be an effective substrate for Eisenia fetida and microbial proliferation, leading to a reduction in the bioavailability of potentially toxic metals.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Yuchen Zhou, Zezhi Chen, Huijuan Gong, Ziyi Yang
Summary: Thermal decomposition is a promising technology for tannery sludge disposal, where different processes were simulated to investigate the transformation of Cr species. The study found that pyrolysis is the safest method for Cr fixation and reuse.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agronomy
Faiz Ahmad Joyia, Muhammad Yasin Ashraf, Fahad Shafiq, Sumera Anwar, Zaib-un-Nisa, Binish Khaliq, Arif Malik
Summary: The study showed that different concentrations of tannery wastewater had significant effects on the growth and biochemical attributes of cotton and brinjal plants. Higher concentrations of effluents led to greater inhibition of plant growth, along with bioaccumulation of chromium and sodium in both plant species.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Construction & Building Technology
Lei Guo, Wenhao Zhao, Lixia Guo, Pingping Chen, Yiqing Zhang
Summary: This study investigates the effects of different processes on the performance of non-burning wrap shell aggregate and determines the optimal process using the entropy method. The results show that the curing age has a significant impact on the performance of the wrap shell aggregate. The wrap shell amount and the sludge content in the core component affect the compressive strength, water absorption rate, and frost resistance of the aggregate.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Energy & Fuels
Md Abul Hashem, Md Sahariar Sahen, Mehedi Hasan, Sofia Payel, Md Shahruk Nur-A-Tomal
Summary: The study investigates the use of tannery liming sludge mixed with organic materials for composting, which raises temperature effectively and ensures the destruction of pathogenic microorganisms. The heavy metal content in compost meets standards, while the nutrient content fulfills compost requirements.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Engineering, Environmental
Yan Zhao, Cheng Zhang, Lun Ma, Junchen Li, Peng Tan, Qingyan Fang, Gang Chen
Summary: This study investigated the migration behavior of arsenic and chromium at high temperatures using CO2 gasification technology, and found that increasing temperature can enhance the stability of HMs in ash, reducing their toxicity and environmental risk.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Acoustics
Matheus F. Pedrotti, Daniel Santos, Vitoria H. Cauduro, Cezar A. Bizzi, Erico M. M. Flores
Summary: In this study, a continuous flow extraction system assisted by ultrasound was developed for extracting Cr(III) from residual tanned leather shavings. The use of ultrasound energy increased the extraction efficiency and allowed for a reduction in processing time and operational temperature compared to the silent condition. The overall energy consumption with ultrasound was similar or lower than that observed without ultrasound.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Water Resources
Javier A. Arcibar-Orozco, Bertha S. Barajas-Elias, Hazael Baltazar-Campos, Rene Rangel-Mendez
Summary: This study examines the transformation of Chromium-Tanned Leather Shavings into carbon adsorbents for removing dyes from water. The results show that carbon materials with low chromium content and improved surface area can be obtained under high temperature and with the use of an activating agent. The surface charge of the adsorbents and the pore volume of the materials play a critical role in the adsorption process. This research demonstrates the possibility of using carbon materials derived from Chromium-Tanned Leather Shavings, which do not contain hazardous chromium particles, for efficient removal of polluting dyes from water.
APPLIED WATER SCIENCE
(2022)
Article
Environmental Sciences
Huirong Lin, Linghao Zeng, Pengpeng Zhang, Binquan Jiao, YanChyuan Shiau, Dongwei Li
Summary: By using attapulgite to strengthen alkali slag, this study prepared cementitious materials to solidify/stabilize chromium-containing sludge waste. The addition of attapulgite enhanced the compressive strength and significantly reduced the leaching concentration of heavy metals in the solidified body. The research indicated the possibility of using attapulgite and its solidified products in construction applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Shan-shan Guo, Chao -yang Yu, Xin-yue Zhao, Ying-zhou Chen, Jing-yi Wang, Min Su, Xing-yu Yang, Jin-yan Yang
Summary: This study combined panel data analysis and soil column experiments to assess the contribution of different contaminants to Cr migration and identify the dominant microbial species. The results showed that NH3-N inhibited Cr(VI) migration, while NO3--N and fatliquor agent promoted Cr(VI) migration. Veronii was found to be the dominant microbial species in fatliquors-contaminated soils. This study provides theoretical support for the selection of remediation methods in soil and groundwater for tannery sites.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Yihan Chi, Qinru Lin, Rongchuan Zhuang, Mingyu Xiong, Zhihong Ye
Summary: In this study, the potential of acid mine drainage sludge (AMDS) as a topsoil substitute for mine waste reclamation was evaluated through a pot experiment. Results showed that AMDS can support plant growth and ensure environmental safety, with fertilizers significantly increasing plant biomass and Bermuda grass being a suitable pioneer species for reclamation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Kaizhi Yang, Yonggui Wu, Meiyan Lan, Xingying Li, Xiaorui Wang
Summary: The use of struvite as a precipitation method for removing nutrients from tannery sludge leachate is an attractive option, but additional phosphorus sources are needed to increase nitrogen removal. This study explores the optimal conditions for nitrogen removal using different phosphorus sources and compares the costs. The results show that phosphogypsum leachate is a technically and economically feasible alternative phosphorus source, and can significantly reduce treatment costs.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Engineering, Environmental
Rokaia Lejri, Sonia Ben Younes, Ali Ellafi, Amir Bouallegue, Younes Moussaoui, Mohamed Chaieb, Ali Mekki
Summary: The study analyzed the physicochemical, microbiological, and spectral characteristics of tanning effluents, as well as the changes in effluents after biological treatment. The results showed a decrease in various parameters in the final effluent after treatment, and the presence of revivable bacteria in microbiological characterization with absence of certain pathogens.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)