Utilization of a leather industry waste

1996 ◽  
Vol 16 (8) ◽  
pp. 765-769 ◽  
Author(s):  
L.S. Simeonova ◽  
P.G. Dalev
Keyword(s):  
Leather Industry ◽  
Industry Waste

Leather industry waste based biorefinery

2021 ◽  
pp. 267-304
Author(s):  
Velusamy Mozhiarasi ◽  
Bhavya B Krishna ◽  
Velmurugan Nagabalaji ◽  
Shanmugham Venkatachalam Srinivasan ◽  
Thallada Bhaskar ◽  
...  
Keyword(s):  
Leather Industry ◽  
Industry Waste

Identifying Microorganisms Able to Perform Biodegradation of Leather Industry Waste

2012 ◽  
Vol 556 (1) ◽  
pp. 301-308 ◽  
Author(s):  
Daniela Simina Stefan ◽  
Romulus Dima ◽  
Mirela Pantazi ◽  
Mariana Ferdes ◽  
Aurelia Meghea
Keyword(s):  
Leather Industry ◽  
Industry Waste

scholarly journals Biological pretreatment of waste from the leather industry to obtain biogas through anaerobic co-digestion processes - A review

2020 ◽  
Author(s):  
Mariana Ferdes ◽  
Rodica Roxana Constantinescu
Keyword(s):  
Biological Treatment ◽  
Negative Impact ◽  
Vegetable Waste ◽  
Biological Pretreatment ◽  
Leather Industry ◽  
Plant Materials ◽  
Industry Waste ◽  
Chemical Treatments ◽  
Animal Fat ◽  
Enzyme Complexes

The leather industry produces a relatively high amount of hard degradable waste, with a negative impact on the environment. This waste usually contains two major categories of residues, namely animal fat and residues containing mostly proteins, suitable for biogas conversion. Obtaining biogas from leather waste by co-digestion with vegetable waste can be a sustainable and eco-friendly alternative to conventional energy from fuels. Anaerobic co-digestion is now considered to reduce waste from various sources and turn it into energy, generating in addition a digestate used as fertilizer in agriculture. This waste is relatively resistant to transformation into an easily fermentable substrate for anaerobic digestion to produce biogas. Thus, the methane yield can be significantly improved by biological treatments with enzymes and enzyme complexes, with microorganisms selected and used as inoculum or by mixed methods, which include other physical or chemical treatments. This paper aims to show the main methods of biological treatment of leather industry waste, in order to increase the yield of biogas by co-digestion with plant materials.

Green composites and blends from leather industry waste

2015 ◽  
Vol 37 (12) ◽  
pp. 3416-3422 ◽  
Author(s):  
Luciana Sartore ◽  
Fabio Bignotti ◽  
Stefano Pandini ◽  
Alberto D'Amore ◽  
Luca Di Landro
Keyword(s):  
Green Composites ◽  
Leather Industry ◽  
Industry Waste

scholarly journals Obtaining Granules from Waste Tannery Shavings and Mineral Additives by Wet Pulp Granulation

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5419
Author(s):  
Katarzyna Ławińska ◽  
Szymon Szufa ◽  
Remigiusz Modrzewski ◽  
Andrzej Obraniak ◽  
Tomasz Wężyk ◽  
...  
Keyword(s):  
Specific Surface ◽  
Water Glass ◽  
Granulometric Composition ◽  
New Method ◽  
Leather Industry ◽  
Strength Parameters ◽  
Granulation Process ◽  
Industry Waste ◽  
Mineral Additives

This paper presents the results of research on the granulation process of leather industry waste, i.e., tanning shavings. It is economically justified to granulate this waste together with mineral additives that are useful in the processes of their further processing. Unfortunately, the granulation of raw, unsorted shavings does not obtain desired results due to their unusual properties. In this study, the possibilities of agglomeration of this waste were examined by a new method consisting of the production and then the granulation of wet pulp. During granulation, no additional binding liquid is added to the granulated bed. As part of this work, the specific surface of granulated shavings, the granulometric composition of the obtained agglomerates, and their strength parameters were determined. The use of a vibrating disc granulator, the addition of a water glass solution (in the pulp), dolomite, and gypsum made it possible to obtain durable, mechanically stable granules.

scholarly journals A Review on Utilization Routes of the Leather Industry Biomass

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Million Ayele ◽  
Derseh Yilie Limeneh ◽  
Tamrat Tesfaye ◽  
Wassie Mengie ◽  
Amare Abuhay ◽  
...  
Keyword(s):  
Fossil Fuel ◽  
Leather Industry ◽  
Processing Industry ◽  
Industry Waste ◽  
Leather Processing ◽  
Collagen Protein ◽  
European Union Legislation ◽  
Alkali Hydrolysis ◽  
Solid Biomass ◽  
Additional Income

The use of biomass to produce bioenergy and biomaterials is considered a sustainable alternative to depleting fossil fuel resources. The world tanneries consume 8–9 MT of skin and hide every year producing 1.4 MT of solid waste. Most of the solid biomass generated from tanneries is disposed of as waste in the environment using either landfilling or thermal incineration. Disposal of this waste into the environment affects the ecosystem, causing bad odor (air pollution) and has an antagonistic impact on the environment. Due to this, European Union legislation bans the landfilling of biomass. This study aims to comprehensively review the possible valorization routes of leather processing industry biomass into high-value biomaterials. Leather biomass (trimmings, shaving, splitting, and buffing dust) mainly contain 30%–35% collagen protein, which is produced by acid or alkali hydrolysis. The biopolymers obtained from leather industry biomass can be utilized in the production of several high-value materials. In addition, leather processing industry biomass also contains fat, which can be converted into a bio-surfactant, and other useful biomaterials. Keratin protein can also be extracted from the hair waste of hides and skins. The increased demand for biomaterials makes the using of leather industry biomass very attractive. From this study, it can be concluded that the conversions of leather processing industry waste to valuable biomaterial can protect the environment, generate additional income for leather industries, and pave way for sustainable and renewable biomaterials production.

scholarly journals Present and prospective leather industry waste disposal

2011 ◽  
Vol 13 (3) ◽  
pp. 53-55 ◽  
Author(s):  
Katarzyna Fela ◽  
Krystyna Wieczorek-Ciurowa ◽  
Michał Konopka ◽  
Zenon Woźny
Keyword(s):  
Waste Disposal ◽  
Economic Benefits ◽  
Hot Water ◽  
Hard Coal ◽  
Thermal Method ◽  
Leather Industry ◽  
Industry Waste ◽  
Leather Wastes ◽  
Tannery Solid Waste ◽  
Disposal Problem

Present and prospective leather industry waste disposal In this paper general characteristics of the main leather industry waste regarding its amount reduction by thermal treatment have been presented. Both the tannery solid wastes and the sludge contain organic substances. Their energy value is more than 50% higher in comparison to hard coal (nominally 20 MJ/kg as dry material). Up to now, the considerable amounts of energy are not recovered; leather wastes are predominantly on landfill. Implementation of a comprehensive thermal method for tannery solid waste and sludge utilization can permit to solve the waste disposal problem by effective neutralization of all of the waste. Moreover, it should bring economic benefits associated with steam or hot water production and landfill tax avoiding. The study is oriented towards the practical application.

scholarly journals Perbandingan LC50 – 96 jam terhadap mortalitas benih ikan mas, Cyprinus carpio Linnaeus 1758 pada limbah penyamakan kulit dan insektisida piretroid

2019 ◽  
Vol 18 (2) ◽  
pp. 103
Author(s):  
D Arfiati ◽  
U Zakiyah ◽  
I. S Nabilah ◽  
N Khoiriyah ◽  
A. S. Jayanti ◽  
...  
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Liquid Waste ◽  
Probit Analysis ◽  
Paddy Fields ◽  
Leather Industry ◽  
Industry Waste ◽  
Common Carp Cyprinus Carpio ◽  
The Common ◽  
Polluted Rivers

The common carp (Cyprinus carpio) with sizes of 3 - 5 cm are usually culture in the paddy fields when the plants still need water for its growth. However, the water which is used to irrigate the paddy fields often contains pollutants, comes from polluted rivers. This study aimed to determine the value of lethal concentrations (Lc60–96 H) in the waste water of leather industry and pyrethroid insecticide with Deltametrin active compound toward mortality of common carp seeds. The research was conducted in two different stages and performed in an experimental method with completely ran-domized design. The experiments for liquid waste of leather industry used seven experiments, while for insecticides with eight experiments. The result of probit analysis for waste of leather industry indicated that LC50 – 96 H was 0,056 ml L-1, while for pyretroid insecticide was 0.0042 mg L-1. It could be said that insecticide had stronger effect on fish seeds mortality because only small amount of concentration could kill fish seeds. The results of this study shown that insecticides was ± 70 thousand times easier to kill fish seeds compared with leather industry waste. Therefore, people should be careful when disposing waste into the water because it will disrupt the life of aquatic organism.AbstrakBenih ikan mas (Cyprinus carpio) ukuran 3 - 5 cm seringkali dipelihara di sawah yaitu pada saat padi masih membu-tuhkan air untuk pertumbuhannya. Namun air yang digunakan untuk mengairi sawah seringkali mengandung bahan pencemar karena berasal dari sungai yang menerima limbah. Penelitian ini bertujuan untuk mendapatkan nilai LC50 – 96 jam limbah penyamakan kulit dan insektisida piretroid berbahan aktif deltametrin terhadap mortalitas benih ikan mas. Penelitian ini dilaksanakan dalam dua tahap yang berbeda dan dilakukan dalam metode eksperimen rancangan acak lengkap. Eksperimen untuk limbah cair penyamakan kulit digunakan tujuh perlakuan dan insektisida digunakan delapan perlakuan.  Hasil analisis probit untuk limbah penyamakan kulit diperoleh nilai LC50 – 96 jam sebesar 277,73  ml L-1 sedangkan nilai LC50 - 96 jam untuk insektisida piretroid yakni 0,0042 mg L-1. Hal ini menunjukkan bahwa insektisida lebih kuat pengaruhnya terhadap kematian benih ikan, karena dengan konsentrasi yang sedikit saja sudah dapat mema-tikan benih ikan. Hasil penelitian menunjukkan bahwa insektisida ±70.000 kali lebih mudah mematikan benih ikan dibandingkan dengan limbah penyamakan kulit. Sebab itu, perlu kewaspadaan dalam membuang limbah ke perairan umum karena akan mengganggu kehidupan organisme penghuninya

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