Abstract
The development trend of oil palm plantations and mills in Indonesia is very rapid. The processing of fresh fruit bunches (FFB) into crude palm oil (CPO) produces the by-product palm oil mill effluent (POME). This by-product contains very high levels of phosphate (P), BOD & COD. These elements will become contaminants and the environment. The research conducted aimed to test the best MgCl dose that can remove P in POME and determine the effect of the treatment given on BOD & COD values. The research was conducted using the struvite making method approach, the treatments tested were MgCl doses of 50 & 100 grams of MgCl per 500 ml of POME that had been maintained at pH 9 with 1N KOH solution. The results showed that the 50 gram MgCl treatment was better at removing P in the solution reaching 80% while the 100 gram MgCl treatment had a removal value of < 2%. BOD & COD values before and after treatment showed no difference, observation with SEM showed that the crystals were not formed completely which supported the very low P & N value of < 1%. The best P removal from POME was in the 50 g MgCl treatment, but the P & N content in the sediment in all treatments was still very low, and all treatments did not change the BOD & COD values, so for development, integrated waste management is needed to change the nature of the waste to meet environmental quality standards.
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