Abstract
Clean water is one of the human's main needs. Dug well water in Tombang, used for various needs. However, the dug well water has been polluted by E. Coli bacteria which is suspected to be due to the disposal of rubbish and waste carelessly and also the distance of latrines and dug wells that are very close together. Therefore it is important to do water purification using agricultural waste that is not utilized. The analysis showed that the purification of dug well water in Tombang with rice husk charcoal had reduced E. Coli bacteria by 55.6% with MPN pattern 1-0-3 so that the MPN value was 11/100 mL of sample.
Highlights
Water can naturally form on its own from 2 diatomic molecules (H2 and O2)
The materials used in this study consisted of rice husk, dug well water, Aquadest, Lactose Broth (LB), Brilliant Green Lactose Bile Broth (BGLB)
The quality testing of activated charcoal aims to determine the level of test parameters not exceeding the standards set in SNI 06-3730-1995 (Botahala, 2019 and Bapa et al, 2019)
Summary
Water can naturally form on its own from 2 diatomic molecules (H2 and O2). Water formation reactions can be written: 2H2 + O2 → 2H2O (Botahala, 2019). The third stage is the consolidation of the charcoal structure in the temperature range of 497 °C-847 °C Heating up to this temperature has caused the degradation of the holocellulose and lignin components which produce gas products (including CO2, H2, CO, CH4, and benzene), liquid products (tar, high molecular weight hydrocarbons, and water) and solid products in the form of charcoal (Botahala, 2019). The resulting carbonized product only has a very small adsorption capacity (Botahala, 2019) Such carbonized materials can be activated by removing tar products by heating in steam or under inert gas or by extraction with a suitable solvent or by chemical reaction. Testing the nature and quality of activated charcoal resulting from the process of activation of rice husk charcoal has been carried out (Botahala, et al, 2019). If gas forms in the Durham tube, the test is positive
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