https://jopr.mpob.gov.my Thu, 21 May 2026 02:30:20 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://jopr.mpob.gov.my/application-of-activated-carbon-in-the-treatment-of-palm-oil-mill-effluent-a-comprehensive-review/ Thu, 21 May 2026 02:30:20 +0000 https://jopr.mpob.gov.my/?p=15567 Palm oil mill effluent (POME) continues to pose a significant environmental threat across palm oilproducing regions due to its high organic load, persistent colour, and the presence of heavy metals and nutrients that often exceed regulatory discharge limits. This review synthesises findings from peer-reviewed studies published and indexed in the Scopus database between 2010 and 2025, focusing on the application of activated carbon (AC) for POME treatment. The reported removal efficiencies for key pollutants ranged from 55.00%–95.00% for chemical oxygen demand (COD), 60.00%–96.00% for biochemical oxygen demand (BOD), and up to 99.43% for colour, depending on the source material, surface area, and operating conditions. AC derived from agro-industrial wastes such as palm kernel shell (PKS), empty fruit bunches (EFB), rice husks, and sludge achieved surface areas up to 935 m²/g. Adsorption was primarily governed by surface complexation, ion exchange, and Van der Waals interactions. Process optimisation via response surface methodology (RSM) identified pH (3–10), adsorbent dosage (5–125 g/L), and contact time (30–240 min) as key variables. Thermal regeneration restored up to 94.00% of AC performance. The novelty of this review lies in its integrated approach combining pollutant-specific adsorption analysis, adsorption mechanisms, biomass-based AC synthesis, statistical process optimisation, and regeneration strategies-consolidating fragmented literature into a comprehensive resource. This review further outlines knowledge gaps and offers strategic recommendations for implementing low-cost, sustainable AC-based treatment technologies tailored for POME remediation.

]]> https://jopr.mpob.gov.my/treated-oil-palm-frond-and-its-utilisation-as-an-improved-feedstuff-for-ruminants-an-overview/ Wed, 17 Nov 2021 01:07:53 +0000 https://jopr.mpob.gov.my/V2/?p=9519 Oil palm frond (OPF) is a biomass residue from oil palm plantations that have received increasing interest for its promise as roughage resources to overcome limitations of ruminant feeding. However, the use of OPF for livestock productivity is limited by its high lignocellulosic content and low nutritional value. Various physical, chemical, biological and physico-chemical treatments have been used to improve the nutritional value of OPF. This review was conducted to study the treatment methods of OPF as a value-added feedstuff and emphasise the effects of treated OPF on in vitro ruminal fermentation and in vivo ruminant digestibility and growth performance. The biological treatment produced favourable outcomes in improving the nutritional value of OPF and was more cost-effective, safe, and environmental-friendly compared to chemical and physical treatments. In vitro rumen fermentation studies on the potential use of treated OPF as feedstuffs for ruminants have been widely reported. Several in vivo studies have found that ruminants performed satisfactorily when fed diets with treated OPF at appropriate ratios. Nevertheless, chemically treated OPF has been successfully used in both beef and dairy cattle feeding trials as it is a good source of protein and has positive impacts on ruminal fermentation and animal production.

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