Palm Oil Engineering Bulletin No.124 (Jul-Sept 2017) p21-24
Exploring the Potential of POME Scale Deposits as an Alternative Source of Phosphorous Mineral and a Mean to Save the Environment
Muzzammil, N*, Mohammed Saedi, J**, Mohd Rushdi, A B, Vijaya, S* and Loh, S K*

Palm oil mill effluent (POME) treatment, like many other wastewater facilities, is prone to formation of scale in its pipelines, tanks, diffusers or any other components exposed to it. The scale could also start depositing in early stages in pipes associated with retention ponds of the facility. Over a period of time, some crystals or scale could grow within the pipes and thus affect the performance of the facility. In this case, an experienced operator would notice the diminishing diameter of the diameter of the pipes due to hardened crystals attached at its inner wall, thus reducing the effective flow rate of the pipe in the facility. When the flow rate decreases, the tendencies are: (1) increased risk of clogging, (2) reduced time for filling the related tanks or clarifier and (3) an increased hydraulic retention time (HRT) affecting the whole efficiency of the treatment system. In a worst-case scenario, the operator would have to replace the clogged components which is definitely are time-consuming and costly involving even major shutdown of the facility.

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