Md. Abdul Moktadir, Hadi Badri Ahmadi, Razia Sultana, Fatema-Tuj- Zohra et al.
The concept of circular economy (CE), a recent popular global business trend, considerably minimizes waste and environmental pollution. However, studies exploring CE practices in the context of leather industry have been scant. To deal with this issue, this paper proposes a decision support framewor...
Sobur Ahmed, Fatema-Tuj-Zohra, Meem Muhtasim Mahdi, Md. Nurnabi et al.
Accumulation of metals (Cr, Zn, Ni, Cd, and Cu) in leafy vegetables cultivated on tannery effluent contaminated soil and agricultural land soil were determined with an Atomic Absorption Spectrophotometer (AAS). The values of risk factors for the human population were studied, where metals were trans...
Sobur Ahmed, Fatema-Tuj-Zohra, Md. Shiblee Hider Khan, Md. Abul Hashem
Raw skin trimmings (RST), wet blue shaving dusts (WSD), and low-chrome wet-blue scraps (LCWS) are protein-rich tannery wastes which are used as one of the main ingredients for manufacturing of poultry feeds. These feeds may contain toxic chromium, which accumulates in the poultry and cause chrome co...
Raju Kumar Das, Al Mizan, Fatema Tuj Zohra, Sobur Ahmed et al.
Abstract The use of vegetable tanning materials in leather processing has drawn attention as an alternative to basic chromium sulphate for its natural abundance and environmental aspects. In this work, an attempt has been made to extract vegetable tannins from Xylocarpus granatum bark using differen...
Md. Abdul Moktadir, Sobur Ahmed, Fatema Tuj Zohra, Razia Sultana
In Bangladesh, leather and leather products sector plays a vital role for economy development. Productivity improvement can be helped to enrich profit of a leather products industry by minimizing excess work and developing new method for particular operation. Now a day, productivity improvement is a...
Sobur Ahmed, Fatema-Tuj-Zohra, Tasrina Rabia Choudhury, Md. Zahangir Alam et al.
In this study, graphene oxide (GO) adsorbent was prepared from commercial graphite powder and characterized using a variety of analytical methods, including X-ray diffraction, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, zeta...
Mst Sharmin Aktar, Md. Saidur Rahman Shakil, Fatema Tuj Zohra
This study deals with the reduction of diverse pollutant including chromium from tanning effluent by using bio-adsorbent developed from a naturally available coconut fibre. The experiment examined varying several parameters like pH (3.0-5.0), adsorbent dosage (1.5-4.0 g L-1), time (5-360 min), conce...
Sobur Ahmed, Zannatul Ferdous, Fatema-Tuj-Zohra
Md. Moinuddin Sheam, Sudhangshu Kumar Biswas, Kazi Rejvee Ahmed, Shifath Bin Syed et al.
Reactive dyes are widely utilized in the textile industry due to their advantageous properties of vivid color, water-fastness, and simple application procedures with minimal energy usage. The toxicity of most azo dyes is a significant environmental concern, as effluents from dye processing and manuf...
Md. Minhaz Uddin, Md. Jawad Hasan, Yead Mahmud, Fatema- Tuj-Zohra et al.
Leather manufacturing involves a number of unit processes, out of which tanning is the most important in so far as it converts the putrescible hides/skins into non-putrescible leather. In this study, glutaraldehyde has been exploited as a means to reduce the use of basic chromium sulfate for the pro...
N. H. M. Rubel Mozumder, Md. Akhtaruzzaman, Mahmoud Bakr, Fatema Tuj Zohra
Lactase has many applications in dairy industry including for the treatment of lactose intolerance. The present study was conducted to identify the activity of lactase enzyme produced by Lactobacillus bacteria isolated from yogurts available in Dhaka city. The strains were identified to be gram posi...
Abrar Shahriar, Fatema-Tuj- Zohra, A.B.M. Wahid Murad, Sobur Ahmed
Waterproofness property of leather can be enhanced by modifying different steps involved in pre-tanning to finishing operations. In this study three sets of experiment were conducted where tanning and finishing techniques differed to analyze the improvement of the waterproofness property. Use of sur...
Fatema Tuj Zohra, Md. Saidur Rahman Shakil, Mst Sharmin Aktar, Shohanur Rahman et al.
Fatema Tuj Zohra, Sobur Ahmed, Razia Sultana, Md. Nurnabi et al.
This article describes the development of an adsorbent from peanut shell (PNS) for removing Cr(III) from tannery effluents. Adsorbent was prepared by pyrolysis of peanut shell followed by activa tion with NaOH and was characterized by different analytical methods. Adsorption capacity and removal rat...
Fatema-Tuj- Zohra, Sobur Ahmed, Md. Zahangir Alam, Md. Nurnabi et al.
= 0.999) was fitted better, i.e. chemisorption. The equilibrium adsorption capacity was 135.34 ± 1.59 mg/g at 298 K, which was decreased to 125.34 ± 1.81, 114.27 ± 1.43, and 104.08 ± 1.53 mg/g at 308, 318 and 328 K, respectively. Negative Gibbs free energy (ΔG) revealed that adsorption of AR 73 dye ...
Md. Arafat Hossain, Plabon Islam Turzo, Md. Saidur Rahman Shakil, Fatema Tuj Zohra
Abstract In this study, the prepared bio-adsorbents from Labeo rohita fishbones were used to remove the anionic acid dye Melioderm HF (High Fastness) Brown G (MHFB) from the aqueous solution. Scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR) were used to analyze t...
Fatema-Tuj-Zohra, Monira Akter Swarna, Emamul Mobin
Untreated tannery wastewater contains a large amount of toxic metals, dyes, and other pollutants, which pose adverse effects on the ecosystem and public health. In this work, a calcium alginate-poly vinyl alcohol-graphene oxide (CA-PVA-GO) composite was prepared to remove metals and dyes, particular...
Plabon Islam Turzo, Tusher Sarder, Fatema-Tuj- Zohra, Mahabubur Rahman Khan et al.
The purpose of the study was to utilise fish scale powder (FSP) of Labeo rohita (Rohu, R) and a combination of Labeo rohita and Labeo catla (Rohu and Catla, RC) fish scales as an alternative to the salt curing of goatskins. The preservation process's efficacy was assessed by periodically evaluating ...
Raju Kumar Das, Al Mizan, Fatema Tuj Zohra, Bahri Başaran et al.
Environmental issues are nowadays the prime concern worldwide for leather industries due to chrome containing solid and liquid wastes generated from the tannery. Therefore, experts are being encouraged in exploring alternative tanning agents. This study aimed at applying a novel vegetable tanning ag...
Arafat Al Mamun, Md Abir Hosain, Sobur Ahmed, Fatema Tuj Zohra et al.
The present study was aimed to develop an enzyme assisted dehairing method as an alternative and ecofriendly technique to reduce the use of harsh chemicals in leather manufacturing. For this purpose, two proteases namely alkaline protease (601 U/ml) and keratinase (132 U/ml) were produced by Bacillu...