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In the present world scenario, environmental problem is a very serious problem due to the industrialization and urbanization development results in air, water and soil pollutions. Water is the main consuming sources in the many of the industries and results in waste industrial effluents discharge into the environment. Their impacts are directly and indirectly affect our living organism and vegetation. The present review paper describes about the dyes effluents removal using low- cost natural adsorbents. Generally, dyes are Carcinogenic, Mutagenic and toxic to life. Adsorption technique is an effective method for the removal of dye. Recently, many of the scientists working on natural adsorbents, since the removal efficiency is significant in case of natural absorbents compared with synthetic adsorbents. Since, the synthetic adsorbents are very expensive in production process. This review is mainly focused on removal of dye using low cost natural adsorbent materials. This review paper clearly brief about the treatment method for the removal of dye using low cost natural adsorbents. [ABSTRACT FROM AUTHOR]

Energy demand has increased due to the development of industrialization and urbanization. As a result, renewable energy sources satisfy the energy demand of human, social and economic development since fossil fuels are limited in natural resources and causing global warming in the environment. In current scenarios, scientists worldwide focus on renewable energy sources like solar, biomass, wind, hydropower, geothermal, etc. Consequently, developing countries are run-down in conventional fossil fuel resources and import them from other countries. A decentralized stand-alone solar system installed in rural areas is a technically feasible solution to overcome the issues. Solar energy system offers many merits in producing electricity since it has zero fuel cost and zero-emission of carbon dioxide (CO2) - greenhouse gas (GHG) into the atmosphere. Solar thermal energy is used for drying, cooking, heating, and electricity generation. Solar photovoltaic (PV) cells are the preferred method for electricity production in the past decades. Choosing the suitable photovoltaic cell for a specific application needs proper knowledge of their basic mechanisms and functions. This paper has reviewed the broad-minded expansion of solar PV technologies from the first generation to current configurations. [ABSTRACT FROM AUTHOR]

Active urbanisation and industrialisation in Malaysia causing massive waste generation. Depleting of landfills is pushing for a new effective approach to solid waste management which is equally important in ensuring the environment is taken care of and free from pollution. Recently the Malaysian government decides to step up in a new holistic approach to a better waste management system where the new implementation of sorting and separation of waste according to a waste composition such as recyclable waste, residual waste and bulky/garden waste at source. This implementation in which requires people to separate their waste and sort the recyclable waste according to categories such as plastic, metal, paper and others. The idea to design and build an automatic waste sorting recycle bin is to support the initiative to separate different kind of trash according to specific categories at the early stage which is at domestic user such as at home and office. This paper discuss the current problem of waste management and how a prototype of smart sorting recycle bin is being developed. [ABSTRACT FROM AUTHOR]

India is facing an acute energy scarcity which is hampering its industrial growth and economic progress. Setting up of new power plants is inevitably dependent on import of highly volatile fossil fuels. Thus, it is essential to tackle the energy crisis through judicious utilization of abundant the renewable energy resources, such as biomass energy, solar energy, wind energy and geothermal energy. India became the world's third largest producer of electricity in the year 2013 and accounts for 4.8% of global share in electricity generation. But its per capita electricity consumption is only 746 kWh, which is lower compared to many countries, though electricity tariff is cheaper in India. Energy is the basic input in all sectors of the nation’s economy, and the standard of living is directly related to per capita energy consumption. As the country is heavily populated, provision of adequate quantities and kinds of energy is a challenge to the government, and the institutions in the country engaged in tasks relating to energy supply and transport. Apart from augmenting the energy supply, renewable resources will help India in mitigating climate change. India is heavily dependent on fossil fuels for its energy needs. There is an urgent need for renewable energy has the potential to create many employment opportunities at all levels, especially in rural areas. An emphasis on presenting the real picture of massive renewable energy potential, it would be possible to attract foreign investments to herald a Green Energy Revolution in India. [ABSTRACT FROM AUTHOR]

Solid waste management in Malaysia was still in a backward stage. Population growth, urbanization and rapid industrialization led to an increase in the solid waste generated by society. Solid waste management is one of the main problems faced by the community, especially in the city. Solid waste management costs of the collection, collecting, transporting waste to the landfill, is very high. The quantity of solid waste should be reduced in order to reduce government spending. Moreover, improper solid waste management caused a negative impact on people and the environment. Method of recycling is one of the best alternatives to reduce the number of solid waste. Therefore, this study was to identify methods of recycling used tires to be used in civil engineering. This study was conducted to determine the effectiveness and properties of rubber from used tires to be add in the road kerb design. [ABSTRACT FROM AUTHOR]