The status and developments of leather solid waste treatment: a mini-review By: 34 (5),399-408 doi

ENERGY RECOVERY OF SOLID WASTE FROM LEATHER PROCESSING
ENERGY AND CLEAN TECHNOLOGIES CONFERENCE PROCEEDINGS, SGEM 2016, VOL I
Page:325-331
Published:2016
DateJUN 30-JUL 06, 2016
Abstract
Sustainability and durability of leather production is based on three key factors: raw material, process efficiency, and pollution prevention and control. Leather is a renewable resource with the ability to reproduce by means of biological processes. The tannery, the unit where leather is processed, must face current constraints, given that leather processing affects all environmental factors: water, air, soil, and raw hide results in about 70-75% solid waste and only about 25% becomes finished leather. Solid waste resulting from leather processing are registered in the European Catalogue with codes 04 01 01 - 04 01 09, namely fleshings and limed split waste, liming waste, degreasing waste, tanned leather waste with chromium content, finished leather waste, tanning floats and sludge with or without chromium. The paper provides an energetic solution for recovery of solid waste, given that leather has half the heat of combustion of diesel and presents the advantages and disadvantages of this solution compared to others.
Teri ishlab chiqarishning barqarorligi va chidamliligi uchta asosiy omilga asoslanadi: xom ashyo, jarayon samaradorligi va ifloslanishning oldini olish va nazorat qilish. Teri biologik jarayonlar orqali ko'payish qobiliyatiga ega qayta tiklanadigan resursdir. Ko'nchilik zavodi, terini qayta ishlash bo'limi, joriy cheklovlarga duch kelishi kerak, chunki terini qayta ishlash atrof-muhitning barcha omillariga ta'sir qiladi: suv, havo, tuproq va teri xom ashyosi taxminan 70-75% qattiq chiqindilarga olib keladi va atigi 25% tayyor teriga aylanadi. . Terini qayta ishlash natijasida hosil bo'lgan qattiq chiqindilar Evropa katalogida 04 01 01 - 04 01 09 kodlari bilan ro'yxatga olingan, ya'ni go'sht va ohaklangan parchalanish chiqindilari, ohaklash chiqindilari, yog'sizlantirish chiqindilari, xromli teri chiqindilari, tayyor teri chiqindilari va ko'nchilik floatlari. xromli yoki xromsiz. Qog'oz terining dizel yoqilg'isi yonish issiqligining yarmini hisobga olgan holda qattiq chiqindilarni qayta tiklash uchun baquvvat yechimni taqdim etadi va bu eritmaning boshqalarga nisbatan afzalliklari va kamchiliklarini taqdim etadi.
Dust pollution and control with leather waste
Volume:16 Page:427-437
DOI:10.1007/s10311-017-0683-6 Published:JUN 2018 Indexed:2018-05-31
Abstract
Dust is a serious worldwide pollution, notably for nanoscale particles that are both toxic and difficult to control. Dust suppression can be done by adsorption on solid wastes, such as collagen from by-products of leather manufacturing. Here we review dust pollution and dust control, notably using collagen degradation products. Simulation experiments show that dust suppression using modified collagen degradation products reaches 68.2% for particulate matter 2.5 (PM2.5) and 78.7% for particulate matter 10 (PM10). The advantages and disadvantages of the current dust suppressors are discussed.
Chang butun dunyo bo'ylab jiddiy ifloslanishdir, ayniqsa zaharli va nazorat qilish qiyin bo'lgan nano o'lchamdagi zarralar uchun. Changni bostirish qattiq chiqindilarga, masalan, teri ishlab chiqarishning qo'shimcha mahsulotlaridan kollagenga adsorbsiya qilish orqali amalga oshirilishi mumkin. Bu erda biz changning ifloslanishi va changni nazorat qilishni ko'rib chiqamiz, xususan, kollagen degradatsiyasini kamaytiradigan mahsulotlar. Simulyatsiya tajribalari shuni ko'rsatadiki, modifikatsiyalangan kollagen parchalanish mahsulotlari yordamida changni bostirish zarrachalar 2,5 (PM2,5) uchun 68,2% va zarrachalar 10 (PM10) uchun 78,7% ga etadi. Hozirgi changni bostiruvchilarning afzalliklari va kamchiliklari muhokama qilinadi.
Effective Utilization of Leather Waste for Cultivation of Bacteria
Volume:12Page:79-82
DOI:10.3233/AJW-150020
Published2015
Abstract
Environmental pollution is one of the major problems associated with rapid industrialization in developing countries. Tanneries generate huge amount of solid waste. Leather waste has been utilized for land filling, preparation of boards, soil fertilizer and animal feed. In the present study, solid leather waste was hydrolyzed with acid and alkali. The tanning agent was removed from the hydrolysate. The hydrolysate was analyzed for protein/amino acid content. The hydrolysate along with agar was used as solid media (Leather Hydrolysate Agar) for the cultivation of Staphylococcus aureus and Escherichia coli. The significant growth of bacteria on leather hydrolysate agar shows the possible use of leather waste hydrolysate in the preparation of microbiological media as well as supplement to bacteriological media.
Atrof-muhitning ifloslanishi rivojlanayotgan mamlakatlarda jadal sanoatlashtirish bilan bog'liq asosiy muammolardan biridir. Ko'nchilik korxonalari katta miqdordagi qattiq chiqindilarni hosil qiladi. Teri chiqindilari erni to'ldirish, taxtalar tayyorlash, tuproq o'g'itlari va hayvonlar uchun ozuqa sifatida ishlatilgan. Ushbu tadqiqotda qattiq teri chiqindilari kislota va gidroksidi bilan gidrolizlangan. Ko'nchilik agenti gidrolizatdan chiqarildi. Gidrolizat oqsil/aminokislota tarkibi uchun tahlil qilindi. Gidrolizat agar bilan birga qattiq muhit (Leather Hydrolysate Agar) sifatida Staphylococcus aureus va Escherichia coli ni etishtirish uchun ishlatilgan. Teri gidrolizatli agarda bakteriyalarning sezilarli darajada ko'payishi teri qoldiqlari gidrolizatidan mikrobiologik muhitni tayyorlashda, shuningdek, bakteriologik muhitga qo'shimcha sifatida foydalanish mumkinligini ko'rsatadi.
Rabbit materials
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