scholarly journals The Effectiveness of Activated Charcoal from Coconut Shell as The Adsorbent of Water Purification in The Laboratory Process of Chemical Engineering Universitas Ahmad Dahlan Yogyakarta

2020 ◽  
Vol 4 (2) ◽  
pp. 113
Author(s):  
Siti Jamilatun ◽  
Ilham Mufandi
Keyword(s):  
Water Quality ◽  
Sulfuric Acid ◽  
Water Purification ◽  
Activated Charcoal ◽  
Chemical Engineering ◽  
Quality Standards ◽  
Clean Water ◽  
Water Quality Standards ◽  
Nitrite Nitrate ◽  
Better Than

Penelitian ini bertujuan untuk menguji efektivitas arang aktif dari tempurung kelapa untuk pemurnian air di Laboratorium Proses Teknik Kimia, Universitas Ahmad Dahlan, Yogyakarta. Penelitian terdiri dari tiga tahapan: Tahapan pertama, menganalisis kandungan air Laboratorium Teknik Kimia UAD, Tahapan kedua, pengujian efektivitas arang aktif untuk penjernihan air dengan dua (2) cara: (1) filter kolom arang aktif dan (2) pencampuran arang aktif dan air sampel, kemudian dilakukan pengadukan. Tahapan ketiga, menganalisa hasil pemurnian air seperti analisis pH, kadar logam, kesadahan (hardness), kadar sulfat (SO4), kadar fluoride, dan mineral. Parameter pemurnian air merujuk pada Clean Water Quality Standards Kementrian Kesehatan. Hasil penelitian yang diperoleh menunjukkan bahwa pemurnian air menggunakan metode kolom filter dapat mengurangi kesadahan kalsium karbonat (CaCO3) hingga 15,33%, kadar asam sulfat (SO4) hingga 98,21%, kadar Flourida (F) hingga 93,35% pada ketebalan kolom arang aktif 15 cm. Sedangkan pemurnian air dengan pencampuran arang aktif dan pengadukan selama 30 menit dengan kecepatan 1000 rpm dapat mengurangi tingkat kekesadahan CaCO3 hingga 26,81%, kadar asam sulfat (SO4) hingga 98,23%, dan fluorida (F) hingga 93,35%. Pemurnian air melalui pencampuran arang aktif dan air dengan pengadukan lebih baik daripada penggunaan kolom arang aktif, karena klorida, bahan organik, nitrit, nitrat, Fe, Mn, CN- tidak ditemukan dalam air setelah pemurnian.This study aims to examine the effectiveness of activated charcoal from coconut shells for water purification at the Chemical Engineering Process Laboratory, Ahmad Dahlan University, Yogyakarta. The first stage, analyzing the water content of the UAD Chemical Engineering Laboratory, Second, testing the effectiveness of activated charcoal for water purification in two (2) ways: (1) activated charcoal column filter and (2 ) mixing the activated charcoal and water samples, then stirring. The third, analyzing the results of water purification such as analysis of pH, metal content, hardness (hardness), sulfate levels (SO4), fluoride levels, and minerals. Water purification parameters refer to the Ministry of Health's Clean Water Quality Standards. The results optimum obtained using the column filter in thickness activated charcoal column 15 cm could reduce hardness (CaCO3) by 15.33%, sulfuric acid (SO4) levels up to 98.21%, Fluoride (F) levels up to 93.35%. While by mixing activated charcoal (15 gram) and water (500 ml) with stirring for 30 minutes at a speed of 1000 rpm could reduce hardness levels by 26.81%, sulfuric acid (SO4) levels up to 98.23%, and fluoride (F) up to 93.35%. Purification of water through the mixing of activated charcoal and water with stirring is better than using an activated charcoal column because it is better than the chloride, organic matter, nitrite, nitrate, Fe, Mn, CN- are not found in the water after purification.

From Catastrophe to Recovery: Stories of Fishery Management Success

2019 ◽  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Wastewater Treatment ◽  
Industrial Pollution ◽  
Clean Water Act ◽  
Quality Standards ◽  
Clean Water ◽  
Water Quality Standards ◽  
Treatment Technology ◽  
Scioto River

<i>Abstract</i>.—A 37-year series of standardized fish assessments in the Scioto River (Ohio, USA) since 1979 coupled with historical information documents a near complete recovery from heavily polluted conditions in the late 19th and early to mid-20th centuries. Nearly 100 fish species were extirpated downstream from the city of Columbus (Ohio, USA) by sewage and industrial pollution. The 1972 amendments to the Federal Water Pollution Control Act (Clean Water Act) mandated the control of sewage and industrial pollution. Reductions in loadings of untreated or poorly treated sewage were incremental. Full recovery to near-prepollution composition and abundance took more than two decades after advanced wastewater treatment was achieved. Unpolluted tributaries served as recolonization sources for populations of extirpated species. These positive changes extended across all fish assemblage members as evidenced by increased values of the Ohio index of biotic integrity; modified index of well-being; native species richness, density, and biomass; and the reduced incidence of external anomalies on fish. These restoration successes and their documentation were facilitated by the Clean Water Act that set forth the goals for water quality standards and treatment technology for reducing water pollution and conducting baseline and follow-up monitoring. An important lesson learned was that serious doubts that existed in the 1970s about the feasibility of advanced wastewater treatment technology and the attainability of water quality standards in an effluent dominated river were completely erased by the demonstrated improvements in the fish and macroinvertebrate assemblages in the Scioto River. The extent of improvements in recreational opportunities have tracked that of the biota by an increased use for fishing, canoeing, kayaking, and related forms of recreation. However, maintaining these improvements will require continuation of high levels of wastewater treatment and water quality standards. A growing human population that is forecast to increase by one-half million persons by 2050 makes maintaining the currently high levels of biological integrity a continuing challenge. Given the lessons learned with the mosaic of stressors in the Scioto River over the past 150 years, we believe this challenge can be met successfully.

scholarly journals Kualitas Air Sungai pada Berbagai Tipe Penutupan Lahan pada Sub-sub DAS di DAS Latuppa

2019 ◽  
Vol 11 (1) ◽  
pp. 59
Author(s):  
Fauziyah Abidin ◽  
Syamsuddin Millang ◽  
Usman Arsyad
Keyword(s):  
Water Quality ◽  
Land Cover ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Quality Of Water ◽  
Quality Water ◽  
Physical And Chemical Quality ◽  
Physical And Chemical ◽  
Better Than

Water has an important role in life. The use of water in various activities must be based on water quality which is influenced by various aspects, one of it is land cover. This study aims to determine water quality, water quality standards and the effect of land cover on water. This study took samples at six points to determine the physical and chemical quality of water. The results showed that the chemical and physical quality of water in the Latuppa watershed still met water quality standards when there was no rain. Parameters that did not meet when rain occurred in the form of turbidity, TSS, and BOD in the river water of the Latuppa watershed. Water quality of the Siguntu Sub-watershed and the Mangkaluku Sub-watershed in the Latuppa River Basin is still relatively good for the use of raw water for drinking water. The water quality in the Latuppa watershed which is covered by forest land (Siguntu Sub-watershed and Mangkaluku Sub-watershed) is better than non-forested (Rantenase Sub-watershed).

scholarly journals Assessment of Quality of Groundwater in Kandarvakottai and Karambakudi Areas of Pudukkottai District, Tamilnadu, India

2009 ◽  
Vol 6 (3) ◽  
pp. 898-904
Author(s):  
D. Ilangeswaran ◽  
R. Kumar ◽  
D. Kannan
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Physicochemical Parameters ◽  
Quality Standards ◽  
Physicochemical Characteristics ◽  
Total Dissolved Solids ◽  
Water Quality Standards ◽  
Standard Procedures ◽  
Groundwater Samples

Various samples of groundwater were collected from different areas of Kandarvakottai and Karambakudi of Pudukkottai District, Tamilnadu and analyzed for their physicochemical characteristics. The results of this analysis were compared with the water quality standards of ISI, WHO and CPHEEO. In this analysis the various physicochemical parameters such as pH, electrical conductivity, turbidity, total dissolved solids, Cl-, F-, SO42-, PO43-, NO3-, NO2-, CN-, Nas+, K+, NH3, Mn, Fe, Ca & Mg hardnessetc., were determined using standard procedures. The quality of groundwater samples were discussed with respect to these parameters and thus an attempt were made to ascertain the quality of groundwater used for drinking and cooking purposes in and around Kandarvakottai and Karambakudi areas.

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