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 Nanofiltration for water and wastewater treatment – a mini review

2013 ◽  
Vol 6 (1) ◽  
pp. 47-53 ◽  
Author(s):  
H. K. Shon ◽  
S. Phuntsho ◽  
D. S. Chaudhary ◽  
S. Vigneswaran ◽  
J. Cho
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Energy Consumption ◽  
Reverse Osmosis ◽  
Lower Energy ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Paper Briefly ◽  
Water And Wastewater Treatment ◽  
Water And Wastewater

Abstract. The application of membrane technology in water and wastewater treatment is increasing due to stringent water quality standards. Nanofiltration (NF) is one of the widely used membrane processes for water and wastewater treatment in addition to other applications such as desalination. NF has replaced reverse osmosis (RO) membranes in many applications due to lower energy consumption and higher flux rates. This paper briefly reviews the application of NF for water and wastewater treatment including fundamentals, mechanisms, fouling challenges and their controls.

scholarly journals Konsentrasi Surfaktan dan Minyak di Perairan Depapre, Kabupaten Jayapura, Provinsi Papua

2019 ◽  
Vol 8 (1) ◽  
pp. 49
Author(s):  
Rosye Hefmi Rechnelty Tanjung ◽  
Baigo Hamuna ◽  
Alianto Alianto
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Oil Concentration ◽  
Water Quality Status ◽  
The Government ◽  
Quality Status ◽  
Rule Out

Kondisi kualitas air suatu perairan yang baik sangat penting untuk mendukung kehidupan organisme yang hidup di dalamnya. Penentuan status mutu air perlu dilakukan sebagai acuan dalam melakukan pemantauan pencemaran kualitas air. Penelitian ini bertujuan untuk mengkaji status mutu air laut berdasarkan konsentrasi parameter surfaktan dan minyak di perairan Distrik Depapre, Kabupaten Jayapura. Pengambilan sampel air laut dilakukan di lima stasiun penelitian, kemudian hasilnya dibandingkan dengan baku mutu air laut untuk biota laut berdasarkan KEPMEN-LH No. 51 Tahun 2004. Hasil penelitian menunjukkan bahwa konsentrasi surfaktan di perairan Distrik Depapre berkisar antara 0,08–0,22 mg/L, sedangkan konsentrasi kandungan minyak berkisar antara 0,14–0,41 mg/L. Berdasarkan baku mutu air laut, konsentrasi surfaktan dan minyak belum melampaui baku mutu dan masih sesuai untuk biota laut di perairan Depapre, Kabupaten Jayapura. Hasil penelitian ini memberikan informasi bahwa kondisi perairan Depapre belum tercemar oleh limbah surfaktan dan minyak. Namun tidak menutup kemungkinan bahwa konsentrasi tersebut dapat terus meningkat, sehingga perlu upaya lebih lanjut dari pemerintah dan masyarakat untuk meminimalkan jumlah limbah surfaktan dan minyak yang masuk kelingkungan perairan laut. Good water quality is critical to support the life of organisms. The determination of water quality status was needed as a reference to monitor water pollution. This study aimed to assess the condition of water quality based on the concentration of surfactant and oil parameters in the Depapre waters, Jayapura Regency. Sampling was carried out in five research stations; then the results were compared with water quality standards based on KEPMEN-LH No. 51 Tahun 2004 for marine biotas. The result showed that the concentration of surfactant in Depapre waters was 0.08–0.22 mg/L, while the oil concentration was 0.14–0.41 mg/L. Based on water quality standards, surfactant and oil concentration has not exceeded the quality standards and are suitable for marine biotas in Depapre waters, Jayapura Regency. Results showed the condition of  Depapre waters had not been polluted by surfactant and oil waste. However, it does not rule out the possibility that the concentration can increase so that it needs further efforts from the government and the community to minimize the amount of surfactant and oil waste entering the marine environment.

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.

scholarly journals Analisis kepadatan bakteri coliform di Sungai Siak (sekitar perumahan sari residence Kota Pekanbaru)

Jurnal Zona ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 65-72
Author(s):  
Arief Mubyarso ◽  
Yusni Ikhwan Siregar ◽  
Sofyan Husein Siregar
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Drinking Water ◽  
Government Regulation ◽  
Preliminary Test ◽  
Quality Standards ◽  
Coliform Bacteria ◽  
Survey Method ◽  
Faecal Coliforms ◽  
Water Quality Standards

Faecal coliforms are indicative bacteria of fecal contamination. If the bacteria are found in the waters so that the waters has been polluted and can not be used as a source of drinking  water.  The  research  has  been  conducted  from April  to  June  2014  at  Sari Residence Housing which located in Siak riverbanks by using survey method. Densitydata of water coliform bacteria the preliminary test and assertion test in the laboratory according to SNI 2897-2008. Data analysis is using ANOVA statistics and compared with the water quality standards according to the Indonesian Government Regulation No. 82 year 2001 on the Management of Water Quality and Water Pollution ControlClass I and Class II. The results showed that the density of coliform bacteria in the Siak River (around Sari Residence Housing Pekanbaru city) ranged between 11267-15650jml/ 100mL and pass the drinking water quality standards and require special handlingfor the use of water. Siak River water (around Sari Residence Housing Pekanbaru city)not feasible for consumption according to PP 82 year 2001 class I and II on the drinkingwater requirements of 1000 jml/100mL and 5000 jml/100m

scholarly journals Reclaimed water application to vegetation restoration in mining area: Determination of water quality standards and optimization of moderate treatment technology

2021 ◽  
Vol 260 ◽  
pp. 01026
Author(s):  
Le Chen ◽  
Kai Sun ◽  
Panyue Zhang ◽  
Zhen Zhang ◽  
Jinsong Liang ◽  
...  
Keyword(s):  
Water Quality ◽  
Reclaimed Water ◽  
Quality Standards ◽  
Membrane System ◽  
Water Shortage ◽  
Mining Area ◽  
Quality Standard ◽  
Vegetation Restoration ◽  
Water Quality Standards ◽  
Treatment Technology

Water shortage severely restricts vegetation restoration of mining area in the northwest China. Moderate treatment of reclaimed water is essential for improving the local ecological environment. In this study, relevant water quality standards issued by the states and research results were comprehensively considered to propose a reclaimed water quality standard suitable for vegetation restoration of mining area. The available domestic sewage and mine water was moderately treated by hybrid biological reactor system and nanofiltration membrane system, respectively. The effluent quality meet the requirement of reclaimed water quality standards in this study. This study provides theoretical support for vegetation restoration of mining area.

scholarly journals Nanofiltration for water and wastewater treatment – a mini review

2013 ◽  
Vol 6 (1) ◽  
pp. 59-77 ◽  
Author(s):  
H. K. Shon ◽  
S. Phuntsho ◽  
D. S. Chaudhary ◽  
S. Vigneswaran ◽  
J. Cho
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Lower Energy ◽  
Quality Standards ◽  
Control Mechanisms ◽  
Membrane Process ◽  
Water Quality Standards ◽  
Paper Briefly ◽  
Water And Wastewater Treatment ◽  
Water And Wastewater

Abstract. The application of membrane technology in water and wastewater treatment is increasing due to stringent water quality standards. Nanofiltration (NF) is one of the widely used membrane processes for water and wastewater treatment in addition to other applications such as desalination. NF has replaced reverse osmosis (RO) membranes in many applications due to lower energy consumption and higher flux rates. This paper briefly reviews the application of NF for water and wastewater treatment including fundamentals of membrane process in general, mechanisms of NF process including few basic models. fouling challenges and their control mechanisms adopted.

scholarly journals Coordination of sanitation investment decisions with broader water resources management

2020 ◽  
Vol 24 ◽  
pp. e14
Author(s):  
Ana Paula Dalcin ◽  
Guilherme Fernandes Marques
Keyword(s):  
Water Management ◽  
Water Pollution ◽  
Water Quality ◽  
Water Availability ◽  
Water Discharge ◽  
Quality Standards ◽  
Watershed Scale ◽  
Water Quality Standards ◽  
Wastewater Infrastructure ◽  
Water And Wastewater

Water pollution affects water security, reducing water supply to economic water uses and threatening environmental preservation and human health. Controlling water pollution depends on efforts on two main sectors. One is water management, which provides regulatory instruments, including water quality standards, water abstraction and water discharge permits, as well as economic instruments, like water and wastewater charges. Another is sanitation, which is responsible for expansion of water and wastewater infrastructure and faces challenges in financing extensive infrastructure. While water management defines broader (watershed scale) strategies to address water quality, other decisions regarding infrastructure investment are made by the sanitation sector at the municipality scale, with limited perception of broader watershed context on water availability and pollution. When water management and sanitation decisions are not coordinated there are missed opportunities to (a) meet water quality standards at given river reaches due to lacking investment upstream and (b) find least cost investment solutions across municipalities, at the watershed scale. In this paper, we present methods and solutions to coordinate wastewater infrastructure expansion planning with water management instruments in the long-term planning to maximize economic returns and improve water quality. Our methods identify the regions where investments could be prioritized, coordinated with the distribution of water permits and definition of water quality targets. Results show that restricting water permits on some watershed regions results in a small water availability trade-off for economic uses but a significant reduction in costs to sanitation investments, while also meeting the water quality targets. We conclude that while there are several ways to reach predefined water quality targets, each way requires well-coordinated decisions from the water management perspective (where and when to allocate water permits) and the sanitation sector (where and when to concentrate investments in wastewater treatment). Thus, as important as the decisions to improve water management instruments and to increase investments in sanitation is their coordination towards a common watershed goal

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