Bio-agent de retanare utilizat in procesarea pieilor si procedeu de obtinere

Currently, the leather industry has to deal with very high costs for waste treatment and disposal. As a result, it is recommended to subject the organic protein waste from tanning to biochemical treatments for recycling in the industry. The degree of novelty lies primarily in the fact that the starting point of the promoted technologies is obtaining new complex products by processing organic waste and using it in tanneries. The lime fleshings resulting from the hide fleshing operation represents the highest amount of reusable leather material of approx. 25%. This paper presents an innovative process for the biochemical degradation of hide waste resulting from hide fleshing in order to obtain a retanning/filling agent used in leather processing.

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Pelt waste degradation using active microbial consortia

10.24264/icams-2020.ii.5 ◽

2020 ◽

Author(s):

Rodica Roxana Constantinescu ◽

Gabriel Zainescu ◽

Mariana Ferdes ◽

Iulia Caniola

Keyword(s):

Degradation Process ◽

Point Of View ◽

Microbial Consortia ◽

Leather Industry ◽

The Sustainable Development ◽

Production Methods ◽

Leather Processing ◽

Protein Waste ◽

Waste Degradation ◽

By Products

In tanneries, environmental problems have special implications in terms of optimizing the consumption of used chemicals, applied technologies, the degree of recovery of useful substances from leather waste. Biodegradation is the process by which organic substances are broken down by microorganisms. From an ecological point of view, biodegradability assessments of new materials and compounds in the industry are essential to understand and quantify their impact on the environment. The sustainable development of the leather industry has focused on major environmental issues, such as clean production methods and waste management. Tanneries generate huge quantities of solid wastes as pelt waste. If these bio-waste materials are not utilized properly, they are potential source of pollution. Microbiological degradation of pelt waste is amongst the permanent concerns of leather processing units. The process may have the purpose of decomposing waste to exploit by-products as biocompost or to obtain proteases through a biotechnological process. These enzymes can be used after purification in various processes that have animal protein as a substrate. They can also be used in raw state for enzymatic hydrolysis. The paper aims at development of an experimental model on the bioenzymatic degradation process of protein waste from tanneries.

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BONE TOOLS OF TANNING PRODUCTION OF TALDYSAY SETTLEMENT

BULLETIN Series Historical and socio-political sciences ◽

10.51889/2021-1.1728-5461.40 ◽

2021 ◽

Vol 68 (1) ◽

Author(s):

G.B. Sargizov ◽

Keyword(s):

Bronze Age ◽

Small Ruminants ◽

Leather Industry ◽

Bone Tools ◽

Leather Processing ◽

Wear Analysis ◽

Use Wear ◽

Ancient People ◽

The Bronze Age ◽

Very High

The article describes the bone and antler industry in the Taldysay settlement. In the settlement of Taldysai many tools and products from the bones of cattle and small ruminants were found, and the purposes of their use were different. They were widely used in metalworking, ceramics processing, and leatherworking. In the late Bronze Age, there were many types of farms in the Taldysai settlements. In particular, leather processing was an important production of ancient people. The article describes the main types of bone tools used in the leather industry and the results of trasological research. The trasological (use wear analysis) analysis allowed the authors to distinguish and characterize the groups of the tools found in the settlement: puffins, polished astragals of small cattle, prosplitting, and scrapers. The general and specific features of each of the hand-made tools, their functions and applications. Considering the types of bone tools, we see that the method of leather processing by the Taldysai population in the Bronze Age consisted of several processes, and they produced leather goods of very high quality

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ANALISIS KASUS KANKER LIDAH DALAM KONTEKS ASUHAN KEPERAWATAN DENGAN PENDEKATAN COMFORT THEORY MODEL

Poltekita Jurnal Ilmu Kesehatan ◽

10.33860/jik.v12i02.106 ◽

2018 ◽

Vol 12 (02) ◽

Author(s):

Dewi Nurviana Suharto

Keyword(s):

Nursing Care ◽

Tongue Cancer ◽

Theory Model ◽

Breathing Patterns ◽

Patients With Cancer ◽

Starting Point ◽

Squamous Cell Carcinoma Tongue ◽

Very High ◽

Carcinoma Tongue ◽

Comfort Theory

ABSTRACT The prevalence of patients with cancer increase every year. Tongue cancer is a type of malignancy of the tongue, and almost 95% is squamous cell carcinoma. Tongue cancer is a cancer with high progression with bad prognosis so that the mortality rate is very high and often causes discomfort. Comfort is the starting point of various healing that will be achieved by the client. Improvements in client conditions will not be achieved if the need of comfort is not fulfilled. In nursing care the problems that arise in tongue cancer are chronic pain, nutrient imbalance: less than body needs, and ineffective breathing patterns. Analysis of residency practice processes shows that comfort theory can be applied to patients with malignancy cases in nursing care, as it can identify patients' holistic discomfort from the physical, psychospiritual, sociocultural and environmental aspects.Keyword : Comfort Theory, Tongue Cancer

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A hydrochemical and isotopic case study around a near surface radioactive waste disposal

Radiochimica Acta ◽

10.1524/ract.2007.95.1.55 ◽

2007 ◽

Vol 95 (1) ◽

Author(s):

Zs. Szántó ◽

É. Svingor ◽

I. Futó ◽

L. Palcsu ◽

M. Molnár ◽

...

Keyword(s):

Radioactive Waste ◽

Waste Treatment ◽

Radioactive Waste Disposal ◽

Ion Chemistry ◽

Continuous Transition ◽

Near Surface ◽

Disposal Facility ◽

Treatment And Disposal ◽

Site Characterisation

As part of the site characterisation program for the near surface radioactive waste treatment and disposal facility (RWTDF) at Püspökszilágy, Hungary, water quality and environmental isotope investigations have been carried out. Water samples for major ion chemistry, tritium,The chemical composition of groundwaters presented a continuous transition from waters situated on one side to waters on the top and on the other slope of the disposal suggesting the mixing of the three hydrochemical “endmembers”.Most of δ

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Waste disposal site selection techniques in Quaternary terraine Ontario, Canada

Geological Society London Engineering Geology Special Publications ◽

10.1144/gsl.eng.1991.007.01.19 ◽

1991 ◽

Vol 7 (1) ◽

pp. 211-217

Author(s):

A. J. Cooper

Keyword(s):

Site Selection ◽

Waste Treatment ◽

Careful Analysis ◽

Quaternary Geology ◽

Disposal Site ◽

Geological Investigation ◽

Fine Grained ◽

Clayey Silt ◽

Treatment And Disposal ◽

A Site

AbstractThick and predictable deposits of fine grained Quaternary materials have been used for the siting of waste management facilities in Ontario. The search for such sites is founded on the application of techniques in Quaternary geology and hydrogeology. Two examples are presented. Oxford County is located southwest of Toronto in an area of parallel morainic ridges separated by flat till plains. Conventional wisdom would focus on the till plains for thick, consistent fine grained Quaternary Sediments. However, the careful analysis of the Quaternary stratigraphy and glacial history revealed that better sites are located along the moraines. A site on the Ingersoll Moraine was studied in detail and defended at a public hearing. Concerns about the geology of the materials were allayed by the confirmation of homogeneous clayey silt materials exposed when the site opened in late 1986. A much wider ranging search was undertaken for a major hazardous and liquid industrial waste treatment and disposal facility for the Province of Ontario. Progressively more detailed investigations of the Quaternary geology were used to assist a multi-disciplinary site selection team. Initial interpretations covered an area of 75 000 km2 at a scale of 1:250 000. Eight candidate sites were then selected for further investigation with five continuously sampled stratigraphic boreholes. The chosen site is located in a depression in the bedrock filled with 40 m of glaciolacustrine clayey silt. Site specific hydrogeological and geotechnical studies were integrated with a detailed geological investigation.

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