scholarly journals Physicochemical analysis of water and sediments of Usuma Dam, Abuja, Nigeria

2020 ◽  
Vol 31 (2) ◽  
pp. 80-87
Author(s):  
Ifenna Ilechukwu ◽  
Tolulope Abisola Olusina ◽  
Odinaka Chidinma Echeta
Keyword(s):  
Particle Size ◽  
Organic Matter ◽  
Organic Carbon ◽  
Chemical Oxygen Demand ◽  
Total Organic Carbon ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Total Hardness ◽  
Total Organic Matter ◽  
Inorganic Matter

AbstractUsuma Dam is the major source of potable water in the Federal Capital Territory, Abuja, Nigeria. The physicochemical properties of water and sediment of the dam was assessed in this study to determine its quality. Electrical conductivity, pH, nitrate, phosphate, total dissolved solids, total suspended solids, turbidity, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, chloride, total hardness, phosphate, nitrate and sulfate were determined in the water samples. Total organic matter, total organic carbon and particle size were among the parameters analyzed in sediments. The parameters were within recommended limits except for biochemical oxygen demand and chemical oxygen demand which were more than the recommended limit of 10 mg/L and 30 mg/L respectively. The total organic matter and the total organic carbon in the sediment samples were between 1.56±0.27 – 2.85±0.20 % and 0.13±0.03 – 0.96±0.03 % respectively. The particle size was in the following order: sand > silt > clay. The results of this study confirmed the presence of high organic and inorganic matter in the dam from non-point pollution sources occasioned by storm water from poorly planned settlements around the dam and runoffs from agricultural practices.

scholarly journals Pengukuran Parameter Bahan Organik Di Perairan Sungai Silugonggo, Kecamatan Juwana, Kabupaten Pati

2021 ◽  
Vol 10 (3) ◽  
pp. 299-306
Author(s):  
Erick Samuel Frederico Hasibuan ◽  
Endang Supriyantini ◽  
Sunaryo Sunaryo
Keyword(s):  
Organic Matter ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Quality Standard ◽  
Parameter Analysis ◽  
Fishing Industry ◽  
Total Organic Matter ◽  
Purposive Sampling ◽  
Wastewater Quality

Perairan Silugonggo merupakan area pemukiman warga dengan banyak aktivitas perikanan dan kelautan seperti: pertambakan, industri perikanan dan merupakan alur pelayaran. Tingginya aktivitas pemukiman dan industri akan menghasilkan limbah organik dalam jumlah besar. Bahan organik yang melimpah dapat menimbulkan pencemaran lingkungan. Penelitian ini bertujuan untuk mengetahui kandungan bahan organik di perairan sungai Silugonggo, Kecamatan Juwana, Kabupaten Pati. Kandungan bahan organik diketahui melalui analisis parameter TOM (Total Organic Matter), BOD5 (Biochemical Oxygen Demand) dan COD (Chemical Oxygen Demand). Pengambilan sampel dilaksanakan pada tanggal 20 Desember 2019 dan 20 Januari 2020. Metode yang digunakan pada penelitian ini menggunakan metode kasus dengan pengamatan secara langsung di lapangan dan penentuan lokasi penelitian menggunakan metode purposive sampling. Hasil pengukuran parameter penelitian dianalisis menggunakan analisis ragam. Hasil penelitian menunjukkan bahwa nilai TOM sebesar 8,11 – 11,9 mg/L. Hasil pengukuran parameter (a) BOD5 sebesar 8,07 – 24,66 mg/L dan (b) COD sebesar 26,04 – 79,21 mg/L, hasil tersebut berada di bawah baku mutu yang ditetapkan menurut Keputusan Menteri Lingkungan Hidup No. 51 Tahun 2004 tentang Baku Mutu Air Limbah. Tingginya nilai TOM dikarenakan banyaknya masukan limbah bahan organik dari aktivitas di perairan sungai Silugonggo, seperti: pertambakan, industri perikanan, dan alur pelayaran. Silugonggo waters is a residential area with many fishery and marine activities such as: aquaculture, fishing industry and shipping lanes. High residential and industrial activities will produce large amounts of organic waste. Abundant organic matter can cause environmental pollution. This study aims to determine the content of organic matter in the waters of the Silugonggo River, Juwana District, Pati Regency. The content of organic matter is known through parameter analysis of TOM (Total Organic Matter), BOD5 (Biochemical Oxygen Demand) and COD (Chemical Oxygen Demand). Sampling was carried out on December 20, 2019 and January 20, 2020. The method used in this study used the method of direct observation in the field and the date of the research location using the purposive sampling method. The results of the measurement of research parameters were analyzed using analysis of variance. The results showed that the TOM value was 8.11–11.9 mg/L. Parameter measurement results (a) BOD5 of 8.07–24.66 mg/L and (b) COD of 26.04–79.21 mg/L, these results are below the quality standard stipulated according to the Decree of the Minister of the Environment No. 51 of 2004 concerning Wastewater Quality Standards. The high value of TOM is due to the large number of inputs of organic matter from activities in the waters of the Silugonggo river, such as: aquaculture, fishing industry, and shipping lanes.

Humus transformation at the bank filtration water plant

1994 ◽  
Vol 30 (10) ◽  
pp. 179-187 ◽  
Author(s):  
I. T. Miettinen ◽  
P. J. Martikainen ◽  
T. Vartiainen
Keyword(s):  
Organic Matter ◽  
Surface Water ◽  
Organic Carbon ◽  
Chemical Oxygen Demand ◽  
Total Organic Carbon ◽  
Lake Water ◽  
Oxygen Demand ◽  
Bank Filtration ◽  
Water Plant

Transformations in the amount and quality of organic matter (humus) during bank filtration of surface water were studied by analyzing the changes in total organic carbon (TOC), non-purgeable organic carbon (NPOC), chemical oxygen demand (COD), color of water, and UV absorbing humus fractions. The amount of organic matter expressed as TOC, NPOC, and COD depended on temperature and filtration distance from lake water. The color of water and the UV absorbing humus peaks presenting different humus molecule fractions decreased more effectively than other parameters measuring the amount of organic matter in water. The ratio of COD to TOC decreased when the filtration distance of water increased. Our observations indicated that bank filtration of humus-rich lake water changed more the quality of organic matter than its total amount.

scholarly journals Studi Kandungan Bahan Organik Pada Beberapa Muara Sungai Di Kawasan Ekosistem Mangrove, Di Wilayah Pesisir Pantai Utara Kota Semarang, Jawa Tengah

2017 ◽  
Vol 6 (1) ◽  
pp. 29
Author(s):  
Endang Supriyantini ◽  
Ria Azizah Tri Nuraini ◽  
Anindya Putri Fadmawati
Keyword(s):  
Organic Matter ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Sampling Method ◽  
Oxygen Demand ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Sample Survey ◽  
Survey Method ◽  
Total Organic Matter

Bahan organik adalah kumpulan senyawa - senyawa organik kompleks yang telah mengalami proses dekomposisi oleh organisme pengurai, baik berupa humus hasil humifikasi maupun senyawa-senyawa anorganik hasil mineralisasi. Bahan organik merupakan sumber nutrient yang penting, yang sangat dibutuhkan oleh organisme laut. Penelitian ini bertujuan untuk menganalisis parameter kandungan bahan organik meliputi BOD5 (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), TSS (Total Suspended Solid), TDS (Total Suspended Solid) dan TOM (Total Organic Matter) dan menentukan tingkat pencemaran bahan organik berdasarkan baku mutu pada beberapa muara sungai di kawasan ekosistem mangrove, di wilayah pesisir pantai Utara Kota Semarang. Penelitian ini dilaksanakan pada bulan April 2015. Metode yang digunakan dalam penelitian ini adalah metode deskriptif, sedangkan penentuan lokasi penelitian menggunakan metode purposive sampling method dan untuk pengambilan sampel air menggunakan metode sample survey method. Hasil penelitian menunjukan bahwa kandungan parameter bahan organik selama penelitian di semua lokasi adalah BOD (3,77 – 15,13 mg/L), COD (20,33 – 140,67 mg/L), TSS (1,33 – 13,67 mg/L), TDS (818,33 – > 2.000 mg/L) dan TOM (10,73 – 50 mg/L). Secara umum kandungan COD dan TSS di Maron dan Trimulyo sudah melewati ambang batas baku mutu menurut Keputusan Menteri Negara Kependudukan dan Lingkungan Hidup Nomor 2 Tahun 1988 tentang Baku Mutu Air Limbah, sedangkan untuk kandungan BOD, TSS dan TOM belum melampaui ambang batas baku mutu yang telah ditetapkan oleh Keputusan Menteri Negara Lingkungan Hidup Nomor 51 Tahun 2004.

scholarly journals Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand

2020 ◽  
Vol 85 (1) ◽  
pp. 125-140
Author(s):  
Soraya Garófalo-Villalta ◽  
Tanya Medina-Espinosa ◽  
Christian Sandoval-Pauker ◽  
William Villacis ◽  
Valerian Ciobotă ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Chemical Oxygen Demand ◽  
Total Organic Carbon ◽  
Organic Compounds ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Fenton Process ◽  
Reactive Red 120

The degradation of Reactive Red 120 dye (RR-120) in synthetic waters was studied. Two processes were considered: homogeneous sono-Fenton with iron(II) sulfate and heterogeneous sono-Fenton with synthetic goethite and goethite deposited onto silica and calcite sand (modified catalysts GS and GC, respectively). In 60 min of reaction, the homogeneous sono-Fenton process allowed a degradation of 98.10 %, in contrast with 96.07 % for the heterogeneous sono-Fenton process with goethite at pH 3.0. The removal of RR-120 increased when the modified catalysts were used instead of bare goethite. Chemical oxygen demand (COD) and total organic carbon (TOC) measurements showed that the highest TOC and COD removals were achieved with the homogeneous sono-Fenton process. Biochemical oxygen demand (BOD5) measurements allowed confirmed that the highest value of BOD5/COD was achieved with a heterogeneous sono-Fenton process (0.88?0.04 with the modified catalyst GC), demonstrating that the biodegradability of the residual organic compounds was remarkably improved.

scholarly journals Taguchi Method and Response Surface Methodology in the Treatment of Highly Contaminated Tannery Wastewater Using Commercial Potassium Ferrate

Materials ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 3784 ◽  
Author(s):  
Violetta Kozik ◽  
Krzysztof Barbusinski ◽  
Maciej Thomas ◽  
Agnieszka Sroda ◽  
Josef Jampilek ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Organic Carbon ◽  
Taguchi Method ◽  
Chemical Oxygen Demand ◽  
Total Organic Carbon ◽  
Response Surface ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Tannery Wastewater ◽  
Potassium Ferrate

The potential implementation of Envifer®, a commercial product containing potassium ferrate (40.1% K2FeO4), for the purification of highly contaminated tannery wastewater from leather dyeing processes was proposed. The employment of the Taguchi method for optimization of experiments allowed the discoloration (98.4%), chemical oxygen demand (77.2%), total organic carbon (75.7%), and suspended solids (96.9%) values to be lowered using 1.200 g/L K2FeO4 at pH 3 within 9 min. The application of the central composite design (CCD) and the response surface methodology (RSM) with the use of 1.400 g/L K2FeO4 at pH 4.5 diminished the discoloration, the chemical oxygen demand, the total organic carbon, and suspended solids within 9 min. The Taguchi method is suitable for the initial implementation, while the RSM is superior for the extended optimization of wastewater treatment processes.

Study on the Photochemical Decolorization of Orange II by Natural Goethite

2013 ◽  
Vol 821-822 ◽  
pp. 480-483
Author(s):  
Wei Li Zhou ◽  
Wei Ding ◽  
Jie Kuang ◽  
Long Chen ◽  
Jin Jun Li
Keyword(s):  
Reaction Mechanism ◽  
Organic Carbon ◽  
Optimum Condition ◽  
Chemical Oxygen Demand ◽  
Total Organic Carbon ◽  
Pyruvic Acid ◽  
Oxygen Demand ◽  
Orange Ii ◽  
Ph Values ◽  
Decolorization Efficiency

The decolorization of Orange II in goethite/UV system was investigated. It was discovered that the optimum condition is: pH=3, [α-FeOOH]=0.5 g/L, [Orange II]=10 mg/L. Furthermore, the absorption of Orange II on goethite, and the effect of pH values, goethite dosage and carboxylate on the decolorization were investigated. The decolorization efficiency was 90% after 6h irradiation when the concentration of pyruvic acid was 1.0mmol/L, α-FeOOH concentration was 0.3 g/L, and Orange II concentration was 10 mg/L at pH 3.0. Besides, total organic carbon (TOC) and chemical oxygen demand (COD) were determined, and a possible reaction mechanism was prompted as well.

The influence of reaction conditions in the oxidation of organic compounds of nuclear laundry water by ozone

2010 ◽  
Vol 61 (10) ◽  
pp. 2557-2561 ◽  
Author(s):  
M. K. Vilve ◽  
M. E. T. Sillanpää
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Carbon ◽  
Chemical Oxygen Demand ◽  
Organic Compounds ◽  
Biochemical Oxygen Demand ◽  
Treatment Time ◽  
Oxygen Demand ◽  
Ozone Treatment ◽  
Reaction Conditions ◽  
Oxidation Of Organic Compounds

This paper presents a summary of degrading organic compounds of nuclear laundry water by ozonation in different conditions of pH, hydrogen peroxide and ultraviolet radiation. The degradation of organic compounds was analysed by chemical oxygen demand (COD), total organic carbon (TOC) and biochemical oxygen demand (BOD). The optimal degradation conditions were at pH 7 with ozone, UV radiation and hydrogen peroxide addition. The transfer of ozone increased significantly, thus resulting in decreased treatment time compared to ozone treatment alone. The reductions of COD, TOC and BOD were 46%, 32% and 70%, respectively.

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