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All Journal Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam
', Itnawita
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam
Mathematics

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KEMAMPUAN SERAPAN ABU TULANG SAPI TERHADAP VARIASI KONSENTRASI ION NITRAT Yusnita, N.; Anita, S.; ', Itnawita
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 1 (2014): Wisuda Februari 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Cow bone ash is one of some alternative adsorbents, since it contains many oxide compoundssuch as calcium oxide that has an open framework structure. The aim of this study was todetermine the adsorption ability of the cow bone ash on nitrate ion based of the concentrationvariation. Nitrate analysis was carried out using UV-VIS spectrophotometer with brucine-sulfate method. The results showed that concentration affected the adsorption of cow bone ashon nitrate ion with optimum adsorption ability (80.050%) at 10 mg/L.
ANALISIS TOTAL FOSFAT, NITRAT DAN LOGAM TIMBAL PADA SUNGAI SAIL DAN SUNGAI AIR HITAM PEKANBARU Suwandi, Yohanes; Bali, Subardi; ', Itnawita
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Sail River and Air Hitam River are effluent from Siak River where around the two rivers many social activities such as lodging, stall, market, hospital, home industry and dump are founds. Waste from the activities is able to decrease water quality of the rivers. Water quality of the rivers can be evaluated based on Government Regulation No.82, 2001 and Riau Governor Decree No.8, 2001. Water sampling was conducted along both of the rivers at four stations from Oktober to Desember 2013. Samples were taken in two weather conditions i.e rain and dry season. The results of parameter like temperature, Biological Oxygen Demand (BOD) and turbidity in Sail river showed values which were above the limit but the results of Total Suspended Solid (TSS) and Chemical Oxygen Demand (COD) passed the limit of water quality. In Air Hitam river, all results of parameter were still above of the limit. The results of parameter like Phosphat and Pb at all stations at Sail river and Air Hitam rivers passed the limit, while of Nitrate result were still above the limit.
ANALISIS KUALITAS KOMPOS DARI CAMPURAN TANDAN KOSONG KELAPA SAWIT DENGAN KOTORAN AYAM MENGGUNAKAN LIMBAH CAIR PABRIK KELAPA SAWIT DAN EM-4 Suherman, Irawati; Awaluddin, Amir; ', Itnawita
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Empty fruit bunches (EFB) are  solid wastes  produced in large quantity from palm oil industry. Thus, the wastes could cause serious problem to environment. The application of EFB as main component for composting process along with chicken dung is desirable. This research used the EFB combined with chicken dung, POME (Palm Oil Mill Effluent) and EM-4 in order to accelerate the composting process. Control’s sample was made using POME as an activator without EM-4. Quality of compost was determined according to its pH, water content and C/N ratio  at each 5 days for  30 days composting period.  The water content from the samples were determined using gravimetric method while total of N  were determined using Kjehdal method. The result showed that co-composting of EFB and chicken dung    using POME and EM-4 as the activators didn’t have significance difference  on the control’s sample with the value of P>0,05. Meanwhile, the value of pH, water and C/N ratio of composting products were respectively 7, 40-50% and 17-19 after 30 days composting period
Co-Authors Amir Awaluddin Irawati Suherman N. Yusnita S. Anita Subardi Bali Yohanes Suwandi