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Essay On Cashew Nut Industries

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Air Quality Management for Cashew Nut Industries (Cluster)
Marumudi Mohan1, M. Gangadhar2
1- Environmental engineering, gmrit rajam.
2- Chemical engineering, professor. mmohan262@gmail.com ABSTRACT
Cashew Nut Industries are mostly in small scale and cottage sector without any effective pollution remediation techniques. Even so the pollution load from individual unit is relatively small but the magnitude of pollution load from the cluster of units becomes culprit to environment. India is largest producer, processor, exporter and second largest consumer of cashew in the world with annual production of 6, 20,000 MT. India processed about 1.18 million MT of raw cashew seeds through 3650 cashew processing industries scattered in many states of country and around …show more content…

End pipe control techniques

For SO2, NOx, phenolic compounds the suggested increase the stack heights results in better dispersion of these pollutants into atmosphere resulting in minimum possible ground level concentrations. Hence no separate emission standards are proposed for these parameters.
For particulate matter reduce the emissions from Roasting Process high efficiency control systems like venture cum packed bed scrubbers are used.

4.2. Pre-treatment of nuts
Depend on nut characteristics pollution loads are reduced they are
Moisture content, nut size, and roasting time (or) SET
MC, steam exposure time (SET) and nut size distribution steam-boiled nuts was 91.74%, 90.94% and 86.98% for large, medium and small sized nuts at MC*SET combination of 8.34%*30 min, 11.80%*32 min and 8.34%*30 min, respectively. Pre-treatment of cashew nuts by steam boiling was found to decrease in pollution loads of cluster.
4.3. Energy source modification
Solar heating:
Use of solar Energy for cooking as well as extraction cashew nut shell oil
Bio-Gasifier:
The cooking process has a fire tube boiler for steam generation. The

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