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109 results for “Organic Acid”
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Research ArticleOpen accessIn the abstractThe Effect of Higher Sludge Recycling Rate on Anaerobic Treatment of Palm Oil Mill Effluent in a Semi-Commercial Closed Digester for Renewable EnergyAlawi Sulaiman, Zainuri Busu, Meisam Tabatabaei et al.Problem statement: A 500 m3 semi-commercial closed anaerobic digester was constructed for Palm Oil Mill Effluent (POME) treatment and methane gas capture for renewable energy. During the start-up operation period, the Volatile Fatty Acids (VFA) accumulation could not be controlled and caused instability on the system. Approach: A settling tank was installed and sludge was recycled as to provide a … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 1 · 31 Mar 2009 · 9,210 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Minimal Duration Essential for Isolation of Humic Acids From Soils in Forest Restoration ProgrammesMohd Ramzan Nur Hanisah, Osumanu Haruna Ahmed, Kasim Susilawati et al.This study was conducted to investigate whether a simple and rapid method could be developed for extracting, fractionating and purifying soil HA in forest rehabilitation programmes. Humic acids from 10 g of soil were extracted with 100 mL of 0.10 M NaOH. Different extraction periods (4, 8, 12, 16, 20 and 24 h) were tested. Samples were centrifuged (16,211 G … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 8,173 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Extraction and Fractionation Period on the Yield of a Tropical Peat Soil (Hemists) Humic AcidsSusilawati Kasim, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Khanif YusopThe isolation of humic acids from soils is laborious and time consuming. Factors that affect the yield of humic acids isolated from soils include extraction, fractionation and purification periods. This study was conducted to investigate whether a relationship could be separately established between extraction time, fractionation time, and the yield of humic acids of a tropical peat soil (Hemists), as … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 3 · 30 Sep 2007 · 8,099 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThe Polarity of Organic Solvents in Coriander Seed Powder (Coriandrum Sativum) Extract is Dependent on their Content of Beta-Carotene, Total Phenolics, Flavonoids, Antioxidants, and Antibacterial PropertiesUcop Haroen, Syafwan, Agus Budiansyah, Kiki KurniawanAttempts to develop alternative antibiotics from herbal plants, especially those originating from spice plants that contain active compounds, are crucial to improve livestock health and support the growth of livestock to reach their genetic potential. This study aims to examine the effects of utilizing different solvent polarities on the solubility of coriander seed secondary metabolite chemicals, which are associated with … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 6 Nov 2025 · 2,332 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordExtraction of Ca (II) and Mg (II) from Hydrochloric Acid Solutions by N, N-Dioctyl-1-Octan Ammonium Chloride in Methyl Isobutyl KetoneArben Haziri, Fatmir Faiku, Imer Haziri et al.Problem statement: Amines as organic molecules are able to form complexes with metals ions and this is the reason why we can use them to extract metals ions from hydrometallurgical solutions. Approach: Based on that, we have investigated the extraction of Calcium and Magnesium with N, N-dioctyl-1-octan ammonium chloride from the mixture of elements (Ca and Mg) prepared in artificial … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 8 Jun 2012 · 7,592 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordExtraction of Ca(II) and Mg(II) from Hydrochloric Acid Solutions by N,N-Dioctyl-1-Octanamine in Methyl Isobutyl KetoneFatmir Faiku, Arben I. Haziri, Haxhere FaikuProblem statement: Amines as organic molecules are able to form complexes with metals ions and this is the reason why we can use them to extract metals ions from hydrometallurgical solutions. Approach: Based on that, we have investigated the extraction of Calcium and Magnesium with N,N-dioctyl-1-octammine from the mixture of elements prepared in artificial manner. We investigated the influence of … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 7,439 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordRecycle of Plastic Bag Wastes with Organic Wastes to Energy for RDF ProductionsRithy Kan, Chatchai Kungkajit, Thaniya KaosolThis paper studies the utilization potential of Refuse Derived Fuel (RDF) approach to recover the discarded plastics from Hatyai solid waste disposal site in Songkhla province, Thailand. The excavated plastic bag wastes from the closure landfill of Hatyai, unused plastic bag wastes and waste residues are the raw materials for RDF productions. The raw materials are characterized for proximate analysis … …American Journal of Applied Sciences, Vol. 14, Issue 12 · 30 Dec 2017 · 8,721 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEffect of Composted Animal Manure as Fertilizer on Productivity of Azolla Pinnata Grown in Earthen PondsRistianto Utomo, Cuk Tri Noviandi, Nafiatul Umami, Adhitya PermadiAzolla pinnata contains a high nutritional value with a high protein content of 25%, so it can be used as an alternative to animal feed. The low production of Azolla is caused by the suboptimal use of fertilizers. This study aims were to determine the type of manure (composted manure from poultry, goats, and rabbit) which was the most optimal … …OnLine Journal of Biological Sciences, Vol. 19, Issue 4 · 9 Nov 2019 · 11,061 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordUsing Orthosiphon stamineus B. for Phytoremediation of Heavy Metals in Soils Amended with Sewage SludgeArifin Abdu, Najihah Aderis, Hazandy Abdul-Hamid et al.Problem statement: Phytoremediation is a biological treatment where plants are used to remove pollutants from the environment to make them harmless. A study was conducted in a greenhouse at the Faculty of Forestry, Universiti Putra Malaysia on the potential of Orthosiphon stamineus B. planted in sewage sludge for heavy metals uptake. The objective of this study was to evaluate the … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 18 Apr 2011 · 8,769 accessesView PDFCite