scholarly journals Dampak Penambangan Batubara Terhadap Kualitas Air Sungai Batang Manggilang di jorong Sebrang Pasar Kenagarian Manggilang Kabupaten 50 Kota

2018 ◽  
Vol 10 (2) ◽  
pp. 184
Author(s):  
Mulza Rois ◽  
Andrizal Andrizal
Keyword(s):  
Water Quality ◽  
River Water ◽  
Coal Mining ◽  
Physical Condition ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Suspended Substance ◽  
Mining Water ◽  
The Impact

Penelitian ini bertujuan untuk mengetahui dampak penambangan batubara terhadap kualitas air Sungai Batang Manggilang di Jorong Sebrang Kenagarian Manggilang Kabupaten 50 Kota. Jenis penelitian ini merupakan penelitian eksperimen di lapangan yang dilanjutkan dengan analisis di laboratorium. Populasi dan sampel dalam penelitian ini adalah air Sungai Batang Manggilang yang diambil dengan cara sampling acak sederhana. Teknik pengambilan sampel adalah Sampel Komposit, Uji Coba Instrumen, Pengolahan Hasil Test. Hasil penelitian adalah (1) Kondisi Fisika (Warna, rasa, bau, kekeruhan, suhu) didaerah kenagarian manggilang yang berada dekat sungai batang manggilang sesuai dengan uji laboratorium bahwa air sungai ini tidak memenuhi syarat untuk dipergunakan oleh masyarakat yang berada di sekitar hulu sungai batang manggilang. Karena sudah tercemari oleh dengan keberadaan tambang batu bara. (2) Kondisi Kimia ( pH, Zat tersuspensi, Besi (Fe) di daerah kenagarian manggilang sebrang pasar manggilang kabupaten 50 kota tidak memenuhi syarat sesuai yang ditetapkan mentri kesehatan no 492/PER/IV/tahun 2010. Sehingga hal ini sangat membahayakan bagi masyarakat yang menggunakan langsung air Sungai Batang Manggilang untuk keperluan sehari-hari.Kata Kunci: Dampak, Pertambangan Batubara, Kualitas AirThe research aims to determine the impact of coal mining on the water quality of Batang Manggilang River in Jorong Sebrang Kenagarian Manggilang Kabupaten 50 Kota. This type of research is an experimental research in the field followed by laboratory analysis. The population and sample used are simple random sampling. Sampling technique is Composite Samples, Test Instruments, Processing Test Results. The results of the research are (1) Physical Condition (Color, taste, odor, turbidity, temperature) in manggilang kenagarian area near manggilang rod river in accordance with laboratory test that the river water is not eligible for use by people around the river upstream manggilang. Because it is contaminated by the presence of coal mines. (2) Chemical condition (pH, suspended substance, iron (Fe) in kenagarian area manggilang sebrang manggilang market 50 municipal districts do not meet the requirements stipulated health minister no 492 / menkes / Physical Condition (Color, taste, odor, turbidity, temperature) in the kenagarian manggilang area near the river manggilang rod in accordance with laboratory tests that the river water is not eligible for use by people who are in the upper river rod manggilang.Key word: Impacts, Coal Mining, Water Quality

scholarly journals Analysis of The Impact of Industrial Activities Towards River Vacancy Viewed from BODS, CODS, and TSS Using The QUAL2KW Software Method Approach (Case Study: Klampok River, Semarang District)

2020 ◽  
Vol 202 ◽  
pp. 04008
Author(s):  
Nurandani Hardyanti ◽  
Winardi D Nugraha ◽  
Vito Edgar S B
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
River Water ◽  
Catchment Area ◽  
Industrial Sector ◽  
Industrial Activities ◽  
The Impact ◽  
Method Approach

The industrial sector is one of the important sector in supporting the development of a region. Utilization of land around the river that is used for industrial activities will affect the quality of river water. The river can be polluted by waste personinating from industries that operating around the river. The catchment area that used for industry, agriculture, urban development, and the use of land for making roads (gravel or footpaths) can affect the flow of surface water and sediments that it brings to the river. Waste generated from industrial activities can pollute rivers which are a source of water for daily needs and affect the development of biota in them. This can affect river water quality

Environmental monitoring of astrovirus and norovirus in the Rosetta branch of the River Nile and the El-Rahawy drain, Egypt

2019 ◽  
Vol 19 (5) ◽  
pp. 1381-1387 ◽  
Author(s):  
Mohamed N. F. Shaheen ◽  
Elmahdy M. Elmahdy
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Sediments ◽  
Primary Source ◽  
River Nile ◽  
Detection Rates ◽  
Sediment Samples ◽  
Before And After ◽  
The Impact

Abstract Sewage discharge is considered to be the primary source of viral contamination in aquatic environments. This study was conducted to evaluate the impact of El-Rahawy wastewater on the water quality of the Rosetta branch of the River Nile (Rosetta River Nile) through detection of astrovirus (AstV) and norovirus (NoV) in the water and sediments of both sites. For this purpose, we collected 72 wastewater and 12 sediment samples from El-Rahawy drain, and 12 river water and 12 sediment samples from Rosetta River Nile before and after mixing with El-Rahawy wastewater between April 2017 and March 2018. AstVs and NoVs were identified in wastewater (40.2% versus 25%), El-Rahawy sediment (41.6% versus 20.8%), river water after mixing with wastewater (25% versus 16.6%), river water before mixing with wastewater (8.3% versus 0%), river sediment after mixing with wastewater (16.6% versus 8.3%), and no viruses were found in river sediments before mixing with wastewater. AstV genogroup B and NoV genogroup GI were the most frequently detected genotypes in the analyzed samples, with a peak incidence in the winter months. Increasing detection rates of both viruses in El-Rahawy drain samples and river water taken from the Rosetta branch after receiving El-Rahawy wastewater reflect the impact of this drain on the water quality of this stretch of the River Nile.

scholarly journals The Effect of Quality of Education Services on Perceptions of Educational Costs and Student Trust and Their Impact on Student Satisfaction at SMA Negeri Ujungbatu

2021 ◽  
Vol 5 (3) ◽  
pp. 448
Author(s):  
Septia Syafriani ◽  
Suarman Suarman ◽  
Henny Indrawati
Keyword(s):  
Student Satisfaction ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Quality Of Education ◽  
Education Services ◽  
Education Costs ◽  
Perceptions Of Education ◽  
The Impact ◽  
Student Confidence

This study aims to analyze the effect of the quality of education services on perceptions of education costs and student confidence and their impact on student satisfaction at SMA Negeri Ujungbatu. The population of this research is the students of Class XI SMA Negeri Ujungbatu as many as 475 students. The study was conducted with a sample of 217 students taken by simple random sampling technique. Data was collected using a questionnaire. The data analysis used in this research is descriptive quantitative and path analysis. The results showed that there was an influence between the quality of education services on perceptions of education costs and student confidence and the impact on student satisfaction at SMA Negeri Ujungbatu. The meaning is that the better the quality of educational services provided by the school and the more positive students perceive the cost of education, the more students will believe in the education in the school, it will increase the satisfaction felt by students

scholarly journals Effect of Good Hygiene Sanitation and Personal Hygiene Depot Management of Refill Drinking Water on the Quality of Drinking Water Reviewed from Most-Probable-Number Coliform in Kediri

2018 ◽  
Vol 54 (4) ◽  
pp. 241
Author(s):  
Indasah Indasah
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Personal Hygiene ◽  
Most Probable Number ◽  
Cross Sectional ◽  
Probable Number ◽  
Hygiene Management

Drinking water is a basic human need and must meet health requirements. Drinking water depots are a means of filling drinking water which is in the process of processing raw water using treatment and sterilization system. Drinking water depots as providers of drinking water must also meet the requirements of sanitation hygiene and personal hygiene management must also be maintained so that the water produced meets health requirements. The purpose of this study was to determine the effect of sanitation hygiene and personal hygiene management of refill drinking water depots on the quality of drinking water in terms of the Most Probable Number Coliform in Kediri. The research design used was analytic observational with cross sectional approach. The population of all refill drinking water depots in Kediri is 57, with the sampling technique that is Simple Random Sampling, where a portion of refill drinking water depots in Kediri are 50. Data is collected by check list, questionnaire and laboratory examination. The results showed that most of the hygiene sanitation of the drinking water depot had fulfilled the requirements of 77%, the drinking water personal hygiene depot was good as much as 85% and those who met the drinking water requirements were 70%. The results of the hygiene feasibility analysis showed the value of Sig 0.000<0.05 (R=0.935) means that there was an effect of hygiene sanitation quality with water quality in terms of the Most Probable Number Coliform. While the personal hygiene value of Sig 0.001 <0.05 (R = 0.528) indicates that there is a personal hygiene influence with water quality in terms of the Most Probable Number Coliform. The results of Logistic Regression test showed that there were effects of sanitation hygiene and personal hygiene management of refill drinking water depots with water quality in terms of the Most Probable Number Coliform with a significance value = 0.000 <a 0.05. This shows that the hygiene and the better personal hygiene at refill drinking water depots is increasingly fulfilling water quality requirements in terms of the Most Probable Number Coliform

scholarly journals The Effect of Product Quality to Purchase Decision at Safary Milk D’Kandang Amazing Farm Depok

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Maidar Simanihuruk
Keyword(s):  
Product Quality ◽  
Quantitative Methods ◽  
Linear Regression Analysis ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Positive Influence ◽  
Coefficient Of Determination ◽  
Purchase Decision ◽  
The Impact

<p><em>To achieve the desired product quality, a quality standardization of the product is needed. This method is intended to ensure that the products produced meet the predetermined standards so that consumers will not lose confidence in the product concerned. Consumers will make a purchase decision if the product is considered to have high quality. </em><em>The quality of the product will be felt after the item is consumed or used so that consumers will feel satisfied with the product purchased</em><em>. </em><em>The purpose of this study is to determine the impact of product quality on purchas</em><em>e</em><em> decision</em><em> </em><em> at the </em><em>Safary Milk D’Kandang Amazing Farm Depok. The Method of research used is quantitative methods in order to obtain more comprehensive, valid, reliable, and objective data. The sample consists of 100 visitors who visited the Safary Milk D’Kandang Amazing Farm Depok, selected based on the Probability Sampling with Simple Random Sampling technique. The factor and simple linear regression analysis were used for the data analysis with SPSS 22.0.</em><em></em></p><p><em>                </em><em>The results of the study showed that product quality has a positive influence significantly contributed</em><em> </em><em> to the purchas</em><em>e</em><em> decision </em><em> </em><em>at the </em><em>Safary Milk D’Kandang Amazing Farm Depok (</em><em>t = 11.955 &gt; t <sub>table</sub> with a significance of 0.000 (ρ &lt; 0.05) and that is proved by the score of R = 0.770.</em><em> From the coefficient of determination, it can be concluded that the Purchas</em><em>e</em><em> Decision is influenced by the Product Quality variable by 59.3% and the remaining 40.7% which is influenced by other variables.</em><em></em></p><p><em>Keywords: Product Quality, Purchase Decision</em><em></em></p>

scholarly journals A Review on pH, DO and BOD of the Sitalakhya River during Last Four Decades

2021 ◽  
pp. 25-42
Author(s):  
Monjur Morshed ◽  
Muzaffer Hosen ◽  
Md. Asaduzzaman
Keyword(s):  
Water Quality ◽  
River Water ◽  
Industrial Effluent ◽  
Industrial Effluents ◽  
River Water Quality ◽  
Quality Analysis ◽  
Oil Spillage ◽  
The Impact ◽  
Day By Day

As a developing country, industrialization is rapidly growing up in Bangladesh. Most of the cases, the industrialization process don’t considering any impact on environmental body. In this study, the impact of unplanned industrialization on the surface water is the main focus. In between several resources, the water quality of the Sitalakhya River is our study area. Quality of the Sitalakhya River water is getting polluted day by day through industrial effluents and household wastewater, lube oil and oil spillage around the operation of river ports. The Sitalakhya river water quality analysis is considered between 1975 to 2018, qualitative and quantitative results for pH, DO and BOD were analyzed and also trends of these parameters were also analyzed. Day by day river water quality going far away from EQS value, which is significantly harmful to flora fauna. In this circumstance, industrial effluent and other environmental impacts from unplanned industrialization is main goal of this study. This study shows, how unplanned industrialization can damage an environmental system which is very harmful to our entire ecological cycle. If cannot control this unplanned industrialization, water body will damage and all related ecosystem will be effected.

scholarly journals An Analysis of Existing Housing Stock in Selected Neighbourhoods in Port Harcourt Municipality

2021 ◽  
Vol 2 (3) ◽  
pp. 57-61
Author(s):  
Ibisiki T. Godwill ◽  
O. B. Owei ◽  
Ibama Brown
Keyword(s):  
Physical Condition ◽  
Housing Stock ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Social Infrastructure ◽  
Entire Study ◽  
Multi Stage ◽  
Port Harcourt ◽  
Existing Housing

The housing stock in Port Harcourt municipality has over the years experienced incremental deterioration from neglect to change of use, paucity of funds and sometimes misappropriation of resources. The study assessed existing housing stock within Port Harcourt municipality with the objective to ascertain the physical condition of the housing stock in some planned and unplanned neighbourhoods in Orije layout-Orominike (D/Line), Port Harcourt Township and Diobu (Mile1 and Mile 2) and some waterfront settlements. Twenty-five (25) communities were identified from the entire study area. Some indicators such as habitable space, physical condition, availability of basic social infrastructure and services and environmental quality of the housing unit were measured. The sample was drawn purposively as 4 distinct neighbourhoods were studied. A multi-stage sampling technique was deployed, Taro Yamane formula was applied to determine the sample size of 156, as the number of questionnaires to be administered and stratified simple random sampling technique was employed to select respondents with household 5 persons per household of which 148 questionnaires were retrieved. Data from the field were analysed using Statistical Package for Social Sciences (SPSS), aimed at comparing the nature of substandard housing found across the neighbourhoods studied. The result indicates that the housing stock in the indigenous enclaves within the Diobu neighbourhood has a high occupancy ratio and lacked basic public utilities and services in addition to houses being constructed with substandard materials. Residents often experience periodic flooding after rainfalls. The study recommends that to further improve the standard of housing conditions in line with the global UN standards, the provision of basic social infrastructural services alongside periodic and consistent urban renewal processes should be constantly carried out to reduce the housing deficit within the municipality.

scholarly journals Influence of Anykščiai City on Šventoji River Water Quality

2017 ◽  
Author(s):  
Lina Bagdžiūnaitė-Litvinaitienė ◽  
Andrius Litvinaitis ◽  
Laurynas Šaučiūnas
Keyword(s):  
Water Quality ◽  
Point Source ◽  
River Water ◽  
Anthropogenic Activities ◽  
River Water Quality ◽  
Nutrient Concentrations ◽  
Point Source Pollution ◽  
Investigation Period ◽  
The Impact

Increasing migration of nutrients in the river water is a major factor in determining the quality of river water due to anthropogenic activities. In order to preserve the good water quality in rivers and other surface water bodies, it is necessary to take preventive measures that can be scientific water quality research and analysis. According to research carried out in kind, the article analyses the Anykščiai city as point source pollution, and the influence of it to the water quality of Šventoji river. Also, based on the statistical information a nutrient concentrations trend analysis of the meteorological and hydrological con-ditions influence was carried out. Investigations were carried out in July-September of 2016. Concentrations of ammonium (NH4-N), nitrite (NO2-N), nitrate (NO3-N), phosphate (PO4-P) and dissolved oxygen (O2) was analysed. In order to determine the impact of point source pollution on river water quality, the changes in concentration before and beyond Anykščiai city were evaluated, according to the meteorological and hydrological conditions. It was found that total nitrogen (Nb) and total phos-phorus (Pb) concentrations during the investigation period respectively, increases in 6% and 8%.

scholarly journals Impact of After-Sales Service on Customers� Retention of Mobile Telecommunications in Nigeria

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Fasanmi Olumuyiwa Oladapo
Keyword(s):  
Mobile Networks ◽  
Computer Software ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
P Value ◽  
Mobile Telecommunication ◽  
Software Packages ◽  
The Impact ◽  
The Relationship

The idea of after-sales services has been adopted globally to provide the consumers after the product or services rendered. The study explored the impact of after-sales services on customers� retention of mobile telecommunication in Nigeria. Survey research was adopted, and the aim of using this design is premised on the fact that the study relied on obtaining information from the field using a questionnaire. The population consist of all the subscribers of MTN, Globacom, Airtel and 9mobile. Four hundred seventy-two (472) subscribers of mobile networks were proportionally drawn from the NCC website. Subsequently, a simple random sampling technique was used to select the respondents from each of the mobile networks. Data collected were analysed using an application of simple percentage method in computer software packages (SPSS), and the regression analysis adopted by the testing of a reported hypothesis. The regression of [t-statistics] value of .01 and [2.63] demonstrates that the relationship between after-sale service and retention of customers is essential because the alpha level of 0.05 is higher than the p-value. Hence, the assumption is that growth in after-sales activities is a significant contributor to customer retention. Management should pay attention to the employee position to the quality of after-sales service, which results in future procurement and further recommendations.

scholarly journals Missing Link between Quality of Work Life and Productivity of Loan Disbursement: The Ghanaian Perspective

2016 ◽  
Vol 11 (3) ◽  
pp. 203 ◽  
Author(s):  
Emmanuel Yaw Ampofo ◽  
Kwasi Dartey-Baah
Keyword(s):  
Positive Impact ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Well Being ◽  
Work Life ◽  
Quality Of Work Life ◽  
Cross Sectional ◽  
Quality Of Work ◽  
The Impact

The study examines the impact of credit officers’ Quality of Work Life (QWL) on productivity of loan disbursement in 10 selected Savings and Loans Companies in the Accra, Ghana. The study was quantitative, cross-sectional, descriptive and analytical. Out of 1602 employees, 310 employees were sampled. Simple random sampling technique was used to select both companies and respondents. 92% of questionnaires were self-administered and 8% were e-mailed. The finding indicated a significant positive impact of credit officers’ QWL on productivity of loan disbursement (β= .274, p&lt;.001).<strong> </strong>It was suggested that it will be profitable to and prudent on the part of managers not to play with the QWL of credit officers if they really want to experience an increase in loan disbursement. Also, managers’ comprehensive focus on the general happiness of credit officers by ensuring employees’ holistic well-being in the organisation will lead to productivity of loan disbursement. The study becomes the first to research on both credit officers and productivity of loan disbursement in the financial sector of Ghana.

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