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Waste management is one of the vital environmental issues since last few decades. It has been noted that the generation of waste increases with increasing population, industrialization and urbanization etc. The waste management strategy includes both non-hazardous and hazardous waste management. Non-hazardous waste does not cause potential threat to environment but instead hazardous waste is the waste that poses substantial or potential threats to public health and the environment. Rapidly growing industrial sector has contributed to the generation of large quantity of hazardous waste material. Therefore, to reduce environmental hazard, proper attention is required during storage, segregation, transportation and disposal of hazardous waste, because it cannot be disposed as off in the environment. This study explains about hazardous wastes, types and management.

Use of the best quality Cereals and pulses are very important for the satisfactory production of a good crop, food processing and also essential for the exporting markets. Based on the purity and quality of cereals and pulses, they are graded. In this project, we use LabVIEW for digital image processing techniques for testing the shape and size of various cereals and pulses. Also, the presence of dust and stone particles is identified. According to the level of quality, the Cereals and pulses are classified into three categories which are shown in three indicators (Green-1st grade, yellow-2nd grade, red-3rd grade). This will be helpful to increase the speed, accuracy and decrease the time of testing. The wetness of cereals and pulses is determined for long time storage. For this moisture level is given to LabVIEW with the help of Arduino as a DAQ. The moisture alert buzzer is triggered by LabVIEW.

Cement concrete is the most extensively used construction material. Maintenance and repair of concrete structures is a growing problem involving significant expenditure. As a result carried out worldwide, it has been made possible to process the material to satisfy more stringent performance requirements, especially long–term durability. HPC is the latest development in concrete. It has become very popular and is being used in many prestigious projects such as Nuclear power projects, flyovers multi-storeyed buildings. When using HPC, the addition of supplementary materials in cement has dramatically increased along with the development of concrete industry, due to the consideration of cost saving, energy saving, environmental concerns both in terms of damage caused by the extraction of raw materials and carbon dioxide emission during cement manufacture have brought pressures to reduce cement consumption. Metakaolin looks to be a promising supplementary cementitious material for high-performance concrete. Properties of concrete with metakaolin are mostly preferred additives in high-performance concrete. A possible lower cost, due to large availability in our country itself may be advantages to metakaolin usage in HPC. The substitution proportion of metakaolin is to be used was 5%, 10%, 15%, and 20% by the weight of cement. To make this cubes and cylinders to determine the strength and durability of concrete of it. The results indicate that the replacing mix up to till the last percent has to note and effect on strength in comparing with mixer without metakaolin.