Role of Viruddha Ahara towards Skin and Allergic Disorders; an Ayurveda Review

Viruddha Ahara is Ayurveda view of food incompatibility; Viruddha Ahara referred several types of food incompatibility including food–food interactions and food processing interactions, etc. Diet and its combinations that affects metabolism of tissue, inhibits process of tissue formation, alter physiological process of body and having opposite property, etc. are termed as Viruddha Ahara or incompatible food. The inappropriate quantity and quality of food and improper timing of meal, etc. also comes under the heading of Viruddha Ahara. With respect to concept of Viruddha Ahara Ayurveda has described different food incompatibilities i.e.; Samskar Viruddha, Samyoga Viruddha and Veerya Viruddha, etc. Viruddha ahara can triggers pathogenesis of several diseases including Visarpa, intoxication, Shukra Dhatu Dushti, rhinitis, infertility, Kustha roga and allergic disorders, etc. Present article explored role of Viruddha ahara in skin and allergic disorders

Carbon Nanotubes Based Porous Framework for Filtration Applications Using Industrial Grinding Waste

Forging, milling, turning, grinding and shaping etc. are the various industrial manufacturing processes which generate the metal waste. Grinding is extensively used in the finishing operation. The waste generated contains significant impurities apart from the metal particles. Due to these significant impurities, it becomes difficult to process and gets usually dumped in the landfills which create environmental problems. Therefore, it becomes essential to reuse metal waste to create value added products. Powder injection molding process is used for producing the porous metal matrix framework. This paper discusses the presented design of the porous framework to be used for the liquid filter application. Different parameters are optimized to obtain the better strength framework with variable porosity. Carbon nanotubes are used as reinforcing materials to enhance the strength of the metal matrix framework

Microscopic Analysis of Carbon Nano tubes based Metal Matrix Composite

These days significant waste metal scrap is generated during the machining operations such as grinding, milling, shaping, forging etc. This waste/scrap is big challenge for the industry due to environmental litigation, such as in grinding industry the scarp contain organic and inorganic compounds. Thus, for reprocessing of this grinding waste will be difficult and it also crate environmental problems.  Current work focus to reuse and produce a value added product from the grinding waste. The Powder Injection Molding (PIM) approach used to create the value added product from the grinding waste. As the PIM product will be inferior in terms of mechanical properties, Carbon Nanotubes are added to improve the mechanical properties. To test the microscopic analysis of the PIM products are tested with SEM and it is observed that the PIM products are porous in nature. The hardness testing suggests that the PIM product will have higher harness number with less porosity

Arsenic contaminated groundwater and its treatment options in Bangladesh

Arsenic (As) causes health concerns due to its significant toxicity and worldwide presence in drinking water and groundwater. The major sources of As pollution may be natural process such as dissolution of As-containing minerals and anthropogenic activities such as percolation of water from mines, etc. The maximum contaminant level for total As in potable water has been established as 10 µg/L. Among the countries facing As contamination problems, Bangladesh is the most affected. Up to 77 million people in Bangladesh have been exposed to toxic levels of arsenic from drinking water. Therefore, it has become an urgent need to provide As-free drinking water in rural households throughout Bangladesh. This paper provides a comprehensive overview on the recent data on arsenic contamination status, its sources and reasons of mobilization and the exposure pathways in Bangladesh. Very little literature has focused on the removal of As from groundwaters in developing countries and thus this paper aims to review the As removal technologies and be a useful resource for researchers or policy makers to help identify and investigate useful treatment options. While a number of technological developments in arsenic removal have taken place, we must consider variations in sources and quality characteristics of As polluted water and differences in the socio-economic and literacy conditions of people, and then aim at improving effectiveness in arsenic removal, reducing the cost of the system, making the technology user friendly, overcoming maintenance problems and resolving sludge management issues

Copper oxide incorporated mesoporous alumina for defluoridation of drinking water

In the present study mesoporous alumina was modified by coating copper oxide to enhance the defluoridation of water. The copper oxide coated alumina (COCA) was synthesised by impregnating alumina with copper sulphate solution followed by calcination at 450 �C in presence of air. The COCA was thoroughly characterised using powder XRD, SEM and BET surface area analysis. It was observed that coating of copper oxide improves the adsorption capacity of unmodified alumina from 2.232 to 7.770 mg g�1. Various adsorption isotherm and kinetic parameters were computed using batch adsorption studies to determine the adsorption capacity and to understand the mechanism of adsorption. The results revealed that the adsorption follows Langmuir isotherm and pseudo-second-order kinetic models. The adsorption capacity obtained from Langmuir isotherm plots were 3.155 mg g�1. Assessment of the water quality before and after treatment with COCA also confirmed that the there is no leaching of copper and other parameters were also within permissible limits of Indian drinking water standard indicating that the COCA can be used for treatment of fluoride contaminated drinking water