scholarly journals ANALISIS TINGKAT KESADAHAN AIR TANAH DI LINGKUNGAN UNIVERSITAS MUHAMMADIYAH GORONTALO

2018 ◽  
Vol 7 (1) ◽  
pp. 22
Author(s):  
Jafar La Kilo
Keyword(s):  
Water Quality ◽  
Hard Water ◽  
Soft Water ◽  
Clean Water ◽  
Titration Method ◽  
Complexometric Titration ◽  
Environment And Health ◽  
Physical Chemical ◽  
Quality Water ◽  
Very High

The main need of clean water on Universitas Muhammadiyah Gorontalo (UMGo) especially for bathing, washing and toileting from the groundwater. To utilizing groundwater must to heed water quality. Water quality determined by physical, chemical, and biology parameters. One of this parameters is hardness. Water with very high degrees of hardness is harmful to environment and health. Analysis of hard water degrees from groundwater on Universitas Muhammadiyah Gorontalo area with complexometric titration method has been done. The result shows that degrees of hard water in Yusuf Polapa Mosque, Faculty of agriculture, rectorat, and AMCF building respectively 59,0 mg/L; 74,2 mg/L; 74,0 mg/L dan 57,8 mg/L. This result categorize as soft water. The degrees of hardness in canteen is 81,8 mg/L or moderate water. Therefore, groundwater in Universitas Muhammadiyah Gorontalo area is safe for daily and industry need. Kebutuhan air bersih di lingkungan Universitas Muhammadiyah Gorontalo (UMGo) khususnya mandi, cuci dan kakus (MCK) bersumber dari air tanah. Dalam pemanfaatan air tanah perlu diperhatikan parameter kualitas air. Kualitas air yang baik ditentukan oleh parameter fisika, kimia, dan biologi. Salah satu parameter tersebut adalah tingkat kesadahan. Air tanah yang mengandung tingkat kesadahan yang tinggi dapat berdampak buruk bagi lingkungan dan kesehatan. Telah dilakukan analisis tingkat kesadahan air tanah pada 5 (lima) titik di lingkungan Universitas Muhammadiyah Gorontalo dengan metode titrasi kompleksometri. Berdasarkan hasil analisa, tingkat kesadahan air tanah di Masjid Yusuf Polapa, gedung Fakultas pertanian, gedung rektorat dan gedung AMCF masing-masing adalah 59,0 mg/L; 74,2 mg/L; 74,0 mg/L dan 57,8 mg/L, masuk dalam kategori dengan tingkat kesadahan rendah. Tingkat kesadahan air tanah di sekitar kantin dalam kategori sedang yaitu sebesar 81,8 mg/L. Dengan demikian, air tanah di lingkungan kampus Universitas Muhammadiyah Gorontalo aman digunakan untuk keperluan sehari-hari dan keperluan industri.

Water Quality Modifies Uptake of Waterborne Methylmercury by Rainbow Trout, Salmo gairdneri

1983 ◽  
Vol 40 (6) ◽  
pp. 824-828 ◽  
Author(s):  
D. W. Rodgers ◽  
F. W. H. Beamish
Keyword(s):  
Water Quality ◽  
Rainbow Trout ◽  
Mercuric Chloride ◽  
Relative Efficiency ◽  
Zinc Sulphate ◽  
Hard Water ◽  
Soft Water ◽  
Salmo Gairdneri ◽  
Calcium Dependent ◽  
Sublethal Concentrations

We measured the efficiency of uptake of waterborne methylmercury relative to oxygen consumption for rainbow trout, Salmo gairdneri, in hard or soft water and during exposure to sublethal concentrations of mercuric chloride or zinc sulphate. The relative efficiency of methylmercury uptake in soft water was more than double that measured in hard water. When mercuric chloride was added with waterborne methylmercury, uptake efficiency was further increased, with similar values obtained in hard and soft water. In contrast, addition of zinc sulphate decreased the relative efficiency of methylmercury uptake. Water quality thus significantly affects the accumulation of waterborne methylmercury by fish. In particular, calcium-dependent changes in gill permeability may explain elevated methylmercury residues observed in fish from lakes of low alkalinity and pH.

Toxicity of Cadmium to Goldfish, Carassius auratus, in Hard and Soft Water

1978 ◽  
Vol 35 (1) ◽  
pp. 35-42 ◽  
Author(s):  
L. S. McCarty ◽  
J. A. C. Henry ◽  
A. H. Houston
Keyword(s):  
Water Quality ◽  
Carassius Auratus ◽  
Cadmium Toxicity ◽  
Cadmium Concentration ◽  
Hard Water ◽  
Soft Water ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Cumulative Mortality ◽  
Goldfish Carassius Auratus

Variations in cadmium form and concentration and in selected water quality parameters (pH, dissolved oxygen, total hardness, total alkalinity, conductivity) were monitored during static bioassays conducted with relatively soft (~ 20 mg/L as CaCO3) and hard (~ 140 mg/L as CaCO3) waters. Cadmium concentrations were reasonably stable in soft water, and with the exception of total hardness, water quality was not greatly altered during assay. Cumulative mortality curves were of a simple sigmoidal type and readily analyzed by conventional procedures. LC50 values of 2.76, 2.13, and 1.78 mg Cd/L were estimated on the basis of 48-, 96-, and 240-h periods of observation. During hard-water trials there were transient increases in the amount of particulate cadmium present and sharp decreases in total cadmium levels. Several parameters (pH, total alkalinity, conductivity) exhibited transient and/or sustained variations of a cadmium concentration-dependent type. Mortality curves were typically biphasic. The extent of first-phase mortality was significantly correlated with the magnitude of the initial pH decline and the amount of cadmium present in centrifugable form. Conventional procedures did not result in rectification of 240-h cumulative mortality curves, and the 240-h LC50 value (40.2 mg Cd/L) is considered to be inherently less precise than those obtained on the basis of 48- and 96-h periods of observation (46.9, 46.8 mg Cd/L). Key words: goldfish, Carassius auratus, cadmium toxicity, hard water, soft water, mortality

scholarly journals Menentukan Posisi Pengeboran Untuk Mendapatkan Air Yang Berkualitas Di Jalan Tunjung I Denpasar Barat Dengan Metode Geolistrik

2017 ◽  
Vol 18 (2) ◽  
pp. 81
Author(s):  
I Kadek Suardika ◽  
I Nengah Simpen ◽  
I Wayan Redana
Keyword(s):  
Water Quality ◽  
Laboratory Test ◽  
Data Processing ◽  
Measurement Data ◽  
Quality Standard ◽  
Clean Water ◽  
Test Results ◽  
Resistivity Data ◽  
Laboratory Test Results ◽  
Quality Water

Investigation has been conducted on drilling point position to get clean water at Jalan Tunjung 1 Denpasar Barat. The investigation was carried out by geoelectric method using the Wenner configuration. The measurement data is processed by using Res2dev Software. From the resistivity data processing results obtained that the best position to get quality water is at position 8º33'43,76 "LS and 115º21'00,06" BT. The position of the aquifer lies at a depth of 16.25 meters. Laboratory test results for several parameters relating to water quality show values that meet the quality standard threshold in accordance with the provisions of Bali's Governor Regulation no. 8 Year 2007.

TEKNOLOGI PENYEDIAAN AIR MINUM UNTUK KEADAAN TANGGAP DARURAT

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Arie Herlambang
Keyword(s):  
Water Quality ◽  
Emergency Response ◽  
Distribution Systems ◽  
Treatment Plant ◽  
Piping System ◽  
Process Technology ◽  
Treatment Technology ◽  
Disaster Victims ◽  
Ultra Filtration ◽  
Quality Water

In the event of natural disasters such as earthquakes, tsunamis, landslides, floods and droughts, water occupies a key role in disaster relief. The presence of water is important for drinking, cooking and support the refugee areas of environmental sanitation and avoiding disaster victims of diseases waterborn disease. Water problem in disaster conditions may occur partly as a result: the disturbance of water sources because change of water quality, to become turbid or salty, the destruction of a piping system, treatment plant damage, disruption of distribution systems, or the scarcity of water in evacuation areas. Introduction of water quality becomes important to determine which process technology will be used and saved investments in emergency conditions. Priority handling of clean water usually comes first in the refugee areas with communal system, because the need of water for bathing, washing and toilet is big enough, while for a drink in the early events during disaster dominated by bottled water, but for their long-term, they have to boil water. For remote areas and difficult to reach individuals who usually use  system more simple and easily operated. Water Supply Technology for emergency response has the characteristic 1). Able to operate with all sorts of water conditions (flexible adaptable), 2). Can be operated easily, 3). Does not require much maintenance, 4). Little use of chemicals, and 5). Portable and easy removable (Mobile System). Keywords :  Water Quality, Water Treatment Technology, Drinking Water, Emergency Response, filtration, ceramic filtration, Ultra filtration, Reverse Osmosis, Ultraviolet Sterilizer, Ozonizer, Disinfection.

STUDI PERBANDINGAN KUALITAS AIR BERSIH DALAM KAITANYA DENGAN AKTIVITAS MASYARAKAT DI SEKITAR SUMBER AIR PADA DESA WAINITU, BATUMERAH, AMAHUSU, DAN HALONG

2017 ◽  
Vol 13 (2) ◽  
pp. 111-119
Author(s):  
Lela Uyara ◽  
Pieter Kunu ◽  
Silwanus M Talakua
Keyword(s):  
Water Quality ◽  
Quality Standard ◽  
Total Coliform ◽  
Quality Analysis ◽  
Clean Water ◽  
Water Quality Analysis ◽  
E Coli ◽  
Microbiological Parameters ◽  
Standard Quality

The study aims to determine the quality of clean water in the villages of Wainitu, Batumerah, Amahusu and Halong by comparing the result of water quality analysis with water quality standard. Water quality analysis includes Physiscal, Chemical, and Microbiological parameters. This research uses descriptive method, this method describes systematics, accurate about facts and characteristic of the quality of clean water of each research location. The results showed that the source of clean water in the village of Batumerah did not meet the standard of clean water quality standards indicated by the number of E. coli and the high total coliform.  Keywords: standard quality of clean water, water quality, Wainitu, Batumerah, Amahusu and Halong villages   ABSTRAK Penelitian yang bertujuan untuk menetapkan kualitas air bersih di Desa Wainitu, Batumerah, Amahusu dan Halong, dengan membandingkan hasil analisis kualitas air dengan standar baku mutu air bersih. Analisis kualitas air meliputi parameter fisika, kimia dan mikrobiologi. Penelitian ini menggunakan metode deskriptif; metode ini menggambarkan sicara sistematis, akurat, fakta dan karakteristik mengenai kualitas air bersih di masing-masing lokasi penelitian. Hasil penelitian menunjukkan bahwa sumber air bersih di Desa Batumerah tidak memenuhi standar baku mutu air bersih yang ditunjukkan oleh jumlah E. coli dan total Koliform yang tinggi. Kata Kunci: baku mutu air bersih, Desa Wainitu, Batumerah, Amahusu dan Halong, kualitas air

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