scholarly journals Recovery of chromium from tannery industry waste water by membrane separation technology: Health and engineering aspects

2019 ◽  
Vol 4 ◽  
pp. e00096 ◽  
Author(s):  
Kemal Mohammed ◽  
Omprakash Sahu
Keyword(s):  
Waste Water ◽  
Membrane Separation ◽  
Separation Technology ◽  
Industry Waste ◽  
Tannery Industry

scholarly journals Evaluation of Anaerobic Digester for Treating Tannery Effluent by Water Displacement Method

2018 ◽  
Vol 7 (4.2) ◽  
pp. 40
Author(s):  
B. Sasivarman ◽  
M. Rajeshkannan ◽  
V. Sowmiya ◽  
E. Subashchandrabose ◽  
R. Swetha
Keyword(s):  
Waste Water ◽  
Activated Sludge ◽  
Sewage Treatment Plant ◽  
Biological Behavior ◽  
Tannery Effluent ◽  
Adjacent Area ◽  
Tannery Waste ◽  
Industry Waste ◽  
Tannery Industry ◽  
Tanning Industry

At hand, be a lot of process to production of leather, such as soaking, liming, degreasing, pickling and tanning process. This makes huge quantity of waste water manufacture from tannery industry. Tannery effluents are additional cause to the environment. An Indian tannery industry generates the tannery effluent regarding 50,000 m3/ day. As a result, treating tannery effluent is the majority chief assignment to save the adjacent area and to get better fresh water. In this exploration the sample from the tanning industry waste water undergo Biological behavior development, typically tanning industry waste water is an effectual within the organichealingprogression. In this learningalongsideby means of the waste matter, the activated slush from Sewage Treatment Plant is additional as a seeding material in the proportion of 95%, 90%, 80%, 70%, 60%, 50%, replacein the 500ml serum bottle in addition to closed tightly to keep up Anaerobic situation and evaluate their biogas production day by day. The 60% activated sludge and the 40% tannery waste waters Mixture gave the high yield of biogas and degraded the macrobiotic contaminants efficiently. From this study, it is observed that activated Sludge is use as seeding materials to biodegrade the natural pollutant at hand in the tannery waste water.  

Separation of Biologically Active Compounds by Membrane Operations

2017 ◽  
Vol 23 (2) ◽  
pp. 218-230 ◽  
Author(s):  
Xiaoying Zhu ◽  
Renbi Bai
Keyword(s):  
Energy Consumption ◽  
Bioactive Compounds ◽  
Membrane Fouling ◽  
Membrane Separation ◽  
Separation Efficiency ◽  
High Energy ◽  
Separation Processes ◽  
Membrane Processes ◽  
Separation Technology ◽  
Pressure Driven

Background: Bioactive compounds from various natural sources have been attracting more and more attention, owing to their broad diversity of functionalities and availabilities. However, many of the bioactive compounds often exist at an extremely low concentration in a mixture so that massive harvesting is needed to obtain sufficient amounts for their practical usage. Thus, effective fractionation or separation technologies are essential for the screening and production of the bioactive compound products. The applicatons of conventional processes such as extraction, distillation and lyophilisation, etc. may be tedious, have high energy consumption or cause denature or degradation of the bioactive compounds. Membrane separation processes operate at ambient temperature, without the need for heating and therefore with less energy consumption. The “cold” separation technology also prevents the possible degradation of the bioactive compounds. The separation process is mainly physical and both fractions (permeate and retentate) of the membrane processes may be recovered. Thus, using membrane separation technology is a promising approach to concentrate and separate bioactive compounds. Methods: A comprehensive survey of membrane operations used for the separation of bioactive compounds is conducted. The available and established membrane separation processes are introduced and reviewed. Results: The most frequently used membrane processes are the pressure driven ones, including microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). They are applied either individually as a single sieve or in combination as an integrated membrane array to meet the different requirements in the separation of bioactive compounds. Other new membrane processes with multiple functions have also been developed and employed for the separation or fractionation of bioactive compounds. The hybrid electrodialysis (ED)-UF membrane process, for example has been used to provide a solution for the separation of biomolecules with similar molecular weights but different surface electrical properties. In contrast, the affinity membrane technology is shown to have the advantages of increasing the separation efficiency at low operational pressures through selectively adsorbing bioactive compounds during the filtration process. Conclusion: Individual membranes or membrane arrays are effectively used to separate bioactive compounds or achieve multiple fractionation of them with different molecule weights or sizes. Pressure driven membrane processes are highly efficient and widely used. Membrane fouling, especially irreversible organic and biological fouling, is the inevitable problem. Multifunctional membranes and affinity membranes provide the possibility of effectively separating bioactive compounds that are similar in sizes but different in other physical and chemical properties. Surface modification methods are of great potential to increase membrane separation efficiency as well as reduce the problem of membrane fouling. Developing membranes and optimizing the operational parameters specifically for the applications of separation of various bioactive compounds should be taken as an important part of ongoing or future membrane research in this field.

scholarly journals Pengaruh Jarak Buangan Air Limbah Industri di Daerah Jaten-Karanganyar terhadap Kadar Chromium dalam Air dan Tanah Permukaan Saluran Air Pungkuk

2018 ◽  
Vol 20 (2) ◽  
pp. 68
Author(s):  
Dwi Priyo Ariyanto ◽  
Indrowuryanto Indrowuryanto ◽  
Hery Widijanto
Keyword(s):  
Waste Water ◽  
Concentration Change ◽  
Sample Analysis ◽  
Industry Waste ◽  
Water Ph ◽  
Pollutant Source ◽  
Independent Variable ◽  
Value Of Water ◽  
Cr Concentration ◽  
And Control

<p>The purpose of this research was to know the effect of industry waste water distance in Jaten-Karanganyar on Cr concentration in the water and soils at Pungkuk waterworks, also to know Cr concentration on that waterworks. The kind of this research was explorative research. The independent variable was treatment of take some water and soils sample at 0 km, 0.5 km and 1 km distance from pollutant source at Pungkuk waterworks and control.</p><p>The result showed that distance where farther can affect Cr<sup>6+</sup> concentration change in the soils and in the water were increase. The increasing of Cr<sup>6+</sup> concentration change in the soils affected Cr<sup>6+</sup> acumulation in the soils. The concentration of Cr<sup>6+</sup> in the water has been influenced by value of water pH and EMC. Value of water pH also was influenced water EMC value. From sample analysis result showed that there was not polluted of heavy metal especially Cr<sup>6+</sup> (between 0.017-0.093 ppm).</p>

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