scholarly journals Analysis of the distribution of domestic wastewater in the Brantas river area of Malang city

2018 ◽  
Vol 195 ◽  
pp. 05004
Author(s):  
Prihatiningsih Bekti ◽  
Zaenal Kusuma ◽  
Agus Suharyanto ◽  
Amin Setyoleksono
Keyword(s):  
Water Quality ◽  
Domestic Wastewater ◽  
Sampling Technique ◽  
Dry Season ◽  
Wastewater Management ◽  
The Public ◽  
Pollution Levels ◽  
Momentary Sampling ◽  
Control And Management ◽  
The Impact

The degradation of water quality has become a major problem today. In Indonesia, the decline in water quality is caused by domestic wastewater which is a non-point source. In an effort to reduce the occurrence of environmental degradation due to domestic wastewater, it is necessary to give an idea and convince the public and the relevant parties of the importance of domestic wastewater management. Efforts are made by informing the pattern of distribution of domestic wastewater in a region and the impact of its distribution for its control and management. The research method uses a momentary sampling technique in accordance with SNI 6989.59:2008. The location of the water sampling is determined purposively. Sampling was conducted in two periods; the dry season in September and the rainy season in January. The observed parameters included BOD5 and E.coli. Determination of the distribution of domestic wastewater uses GIS. The distribution of domestic wastewater is determined based on pollution levels expressed as IP. The results show that pollution levels in Sawojajar and Sumbersari were lightly polluted with average IPs of 4.09 and 4.02 (dry season). While Kedungkandang is in the good category, IP = 0.32 (dry season).

scholarly journals Seasonal changes in water quality and macrophytes and the impact of cattle on tropical floodplain waterholes

2012 ◽  
Vol 63 (9) ◽  
pp. 788 ◽  
Author(s):  
N. E. Pettit ◽  
T. D. Jardine ◽  
S. K. Hamilton ◽  
V. Sinnamon ◽  
D. Valdez ◽  
...  
Keyword(s):  
Water Quality ◽  
Seasonal Changes ◽  
Aquatic Macrophyte ◽  
Plant Cover ◽  
Critical Role ◽  
Dry Season ◽  
Nutrient Concentrations ◽  
Wet Season ◽  
Dry Tropics ◽  
The Impact

The present study indicates the critical role of hydrologic connectivity in floodplain waterholes in the wet–dry tropics of northern Australia. These waterbodies provide dry-season refugia for plants and animals, are a hotspot of productivity, and are a critical part in the subsistence economy of many remote Aboriginal communities. We examined seasonal changes in water quality and aquatic plant cover of floodplain waterholes, and related changes to variation of waterhole depth and visitation by livestock. The waterholes showed declining water quality through the dry season, which was exacerbated by more frequent cattle usage as conditions became progressively drier, which also increased turbidity and nutrient concentrations. Aquatic macrophyte biomass was highest in the early dry season, and declined as the dry season progressed. Remaining macrophytes were flushed out by the first wet-season flows, although they quickly re-establish later during the wet season. Waterholes of greater depth were more resistant to the effects of cattle disturbance, and seasonal flushing of the waterholes with wet-season flooding homogenised the water quality and increased plant cover of previously disparate waterholes. Therefore, maintaining high levels of connectivity between the river and its floodplain is vital for the persistence of these waterholes.

scholarly journals Stigma dan Tingkat Kecemasan Masyarakat pada Covid-19

2021 ◽  
Vol 16 (3) ◽  
pp. 131
Author(s):  
Lilis Banowati ◽  
Cucu Herawati ◽  
Wiwiet Indriyani
Keyword(s):  
Social Impact ◽  
Univariate Analysis ◽  
Sampling Technique ◽  
Positive Thinking ◽  
Frequency Distributions ◽  
Data Presentation ◽  
The Public ◽  
The Social ◽  
Study Population ◽  
The Impact

Background: The increasing number of positive patients with Covid-19, the social impact in the form of stigma from being shunned by neighbors and even families and the impact of mental health, namely causing major psychosocial stresses that can trigger anxiety. Purpose  this study was to determine the stigma and level of public anxiety about Covid- 19. Methods: This type of research is descriptive quantitative, the study population is all people in the UPTD Haurgeulis Puskesmas, Indramayu Regency, as many as 88,468 people. The number of samples was 100 respondents using purposive sampling technique. Data were analyzed statistically using univariate analysis and data presentation in the form of frequency distributions. Results: This study shows that people have a low stigma as much as 1% and those who experience a high stigma are as much as 99%. As well as people who do not experience anxiety as much as 14% and most of them experience mild anxiety as much as 86%. Conclusion: The public should be wiser in sorting out information related to Covid-19 from various sources and can manage anxiety with good self-coping management, for example by relaxation and positive thinking related to Covid-19.

scholarly journals The Effect of Length of Service and Demographic Variables on Organisational Role Stress of Public Sector Bank Employees

2019 ◽  
Vol 7 (3) ◽  
pp. 23-27
Author(s):  
Vijay Prakash Gupta
Keyword(s):  
Public Sector ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Role Stress ◽  
Demographic Variables ◽  
Length Of Service ◽  
The Public ◽  
Organizational Role ◽  
Bank Employees ◽  
The Impact

The study explores the impact of length of service and demographic variables on the organizational role stress on the public sector bank employees. The questionnaire employed in this study is Organisational Role Stress (ORS) scale developed by Prof. Udai Pareek (1983) where the length of service, gender, age, education, number of family members and income are independent variables and Organisational Role Stress (ORS) is the dependent variable. The sample for the study consist of 415 public sector bank employees. Simple random sampling is used as a sampling technique. Data were analyzed using Multiple Regression. The results revealed that length of service, age, education, and income significantly impact the organizational role stress (ORS) on the public sector bank employees.

scholarly journals Water Quality Index (WQI) Approach to Evaluate the Water Quality of Certain Tank Waters of Tiptur Taluk in Tumkur District, Karnataka, India

2015 ◽  
Vol 10 (1) ◽  
pp. 189-198
Author(s):  
A Shivanna ◽  
G Nagendrappa
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Poor Quality ◽  
The Public ◽  
Run Off ◽  
Physico Chemical ◽  
Investigation Period ◽  
The Impact

Evaluation of water quality using different parameters is complex and not easy to understand as it is variable by variable discussion. Water quality index is a single value indicator used to evaluate and present the water quality to the public and the related management in precise and understandable manner. Measured values of eleven physico-chemical parameters namely, pH, TDS, TH, Cl-,NO3-,SO42-,HCO3-, Ca2+, Mg2+, Na+ and K+ were used to calculate WQI of six tanks in Tiptur taluk. The study was taken up to understand the impact of agriculture run off from the respective catchment area, domestic sewage input and human activities which contribute to pollution load. During the investigation period from December-2010 to November-2012, it was found that the overall water quality index of the studied tanks ranged from 46.72 to 92.22 indicating the quality ranging from good quality to very poor quality. Values of variables TDS, HCO3-, Na+ and K+exceeded their desirable limits of BIS/ICMR in Karadi, Halkurke and Honnavalli tanks which depend on rain water. Waters in these tanks were of moderately poor to very poor quality. Waters of Canal fed tanks were of good to moderately poor quality.

Study of food waste degradation in a simulated septic tank

2019 ◽  
Vol 37 (12) ◽  
pp. 1199-1206
Author(s):  
Hongjian Lin ◽  
Yuchuan Wang ◽  
Leif van Lierop ◽  
Carlos Zamalloa ◽  
Casey Furlong ◽  
...  
Keyword(s):  
Water Quality ◽  
Food Waste ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Lower Percentage ◽  
Septic Tank ◽  
Septic Systems ◽  
Percentage Increase ◽  
Septic System ◽  
The Impact

Septic systems are typically designed to treat domestic wastewater from households without access to centralized facilities. The installation of a food waste disposer (FWD) may increase the discharge of food waste (FW) into the wastewater; therefore, the installation of a FWD is discouraged in households that have a septic system. This study was conducted to determine how a typical dose of FW from a FWD can affect the performance of a septic system in terms of sewage treatment and solids accumulation. A 20-L control tank was compared with an experiment tank to which FW was added, increasing the amount of total suspended solids (TSS) by 31.3% and total chemical oxygen demands by 46.3% for a period of 110 days. Although the influent water quality changed dramatically, the effluent from the experiment tank had a substantially lower percentage increase in water quality parameters compared with the effluent from the control. It was found that in the experiment tank, 75.8% of FW TSS was degraded, whereas only 36.7% of sewage TSS was degraded, and that 18.8% of FW TSS and 44.9% of sewage TSS accumulated in the experiment tank. The addition of FW increased the scum accumulation, even though the dry matter of the scum layer was much less in quantity than the sludge layer. It also increased the lipid content in the sludge. The increase in the scum layer was mainly due to the increase in protein from the addition of the FW. Overall, compared with sewage TSS, FW TSS tends to be more biodegradable, which indicates that the impact on pumping frequency from adding FW will be insignificant.

scholarly journals Modelling microbiological water quality in the Seine river drainage network: past, present and future situations

2007 ◽  
Vol 11 (5) ◽  
pp. 1581-1592 ◽  
Author(s):  
P. Servais ◽  
G. Billen ◽  
A. Goncalves ◽  
T. Garcia-Armisen
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Nutrient Loading ◽  
Large River ◽  
Population Increase ◽  
Wastewater Management ◽  
Drainage Network ◽  
Seine River ◽  
Microbiological Water Quality ◽  
The Impact

Abstract. The Seine river watershed is characterized by a high population density and intense agricultural activities. Data show low microbiological water quality in the main rivers (Seine, Marne, Oise) of the watershed. Today, there is an increasing pressure from different social groups to restore microbiological water quality in order to both increase the safety of drinking water production and to restore the possible use of these rivers for bathing and rowing activities, as they were in the past. A model, appended to the hydro-ecological SENEQUE/Riverstrahler model describing the functioning of large river systems, was developed to describe the dynamics of faecal coliforms (FC), the most usual faecal contamination indicator. The model is able to calculate the distribution of FC concentrations in the whole drainage network resulting from land use and wastewater management in the watershed. The model was validated by comparing calculated FC concentrations with available field data for some well-documented situations in different river stretches of the Seine drainage network. Once validated, the model was used to test various predictive scenarios, as, for example, the impact of the modifications in wastewater treatment planned at the 2012 horizon in the Seine watershed in the scope of the implementation of the european water framework directive. The model was also used to investigate past situations. In particular, the variations of the microbiological water quality in the Parisian area due to population increase and modifications in wastewater management were estimated over the last century. It was shown that the present standards for bathing and other aquatic recreational activities are not met in the large tributaries upstream from Paris since the middle of the 1950's, and at least since the middle of the XIXth century in the main branch of the Seine river downstream from Paris. Efforts carried out for improving urban wastewater treatment in terms or organic matter and nutrient loading resulted in a sensible reduction of microbiological contamination, but were not specific enough toward bacteriological contamination for achieving the objective of restoring levels compatible with bathing activities in the Parisian area.

scholarly journals Dewan Komisaris Independen sebagai Pemoderasi Pengaruh Financial Distress pada Kecepatan Publikasi Laporan Keuangan

2018 ◽  
pp. 2204
Author(s):  
Ni Putu Wanda Anggeliana Putri ◽  
Yenni Latrini
Keyword(s):  
Financial Distress ◽  
Sampling Technique ◽  
Financial Statements ◽  
Financial Statement ◽  
Financial Report ◽  
Asymmetry Of Information ◽  
The Public ◽  
Analysis Technique ◽  
The Impact ◽  
Positive Effect

Financial statement is an important instrument, because it can reduce the asymmetry of information that occurs between companies and the public. The velocity of publication of the financial statements may affect the users trust in the financial statements, this is because the information contained in the financial statements is required by the user to  take an economic decision. The purpose of this study is to prove empirically and explain the impact of financial distress on the velocity of publication of financial statements with independent board of commissioners as a moderator variabel. This research was conducted at company of consumer goods industry sector which listed in Bursa Efek Indonesia in 2012-2016. The samples of research taken with non probability sampling method with purposive sampling technique, so that obtained sample of 22 companies with 110 observation. Moderate Regression Analysis is a data analysis technique to obtain the results, the result of research is financial distress have positive effect on the velocity of publication of financial report and independent board of commissioner weaken the effect of financial distress on the velocity of publication of financial statement. Keywords: independent commissioners, financial distress, velocity of publication of the financial statements

scholarly journals Surveying causes of surface water pollution at Sao River, Binh Thuy district, Can Tho city, Vietnam

2021 ◽  
Vol 9 (2) ◽  
pp. 103-110
Author(s):  
Nguyen Thanh Giao
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Surface Water ◽  
Solid Waste ◽  
Biological Activities ◽  
Water Environment ◽  
Oxygen Demand ◽  
Surface Water Quality ◽  
Domestic Wastewater ◽  
Wastewater Management

Surface water sources play an important role in human and biological activities and the socio-economic development of the region. Therefore, the assessment of water quality and determination of the causes of water pollution in Sao river is essential for good management of the surface water environment. The study was conducted from July to December 2020. Water samples were collected at the time of low tide to evaluate the water quality indicators of temperature, pH, conductivity (EC), dissolved oxygen (DO), biological oxygen demand (BOD), total suspended solids (TSS), ammonium (N-NH4+), orthophosphate (P-PO43-) and coliform. The source of pollution was determined by direct interviews with households living near Sao river. The results showed that surface water quality in Sao river had signs of organic pollution and microbiological pollution due to BOD, TSS, N-NH4+, P-PO43-, coliform exceeded the allowable limits of National Technical regulation on surface water quality (QCVN 08-MT:2015/BTNMT, column A1). The results of the interview revealed that 70% of respondents said that water was seriously polluted and the main sources of pollution were domestic solid waste and domestic wastewater. Therefore, to improve surface water quality in Sao river, solid waste and wastewater management is urgently required. It is necessary to promote the monitoring and management of water quality with the participation of local authorities and communities.

scholarly journals THE IMPACT OF UNIVERSAL PRIMARY ENROLLMENT ON CLASSROOM PRACTICES IN THE PUBLIC SECTOR SCHOOLS OF PUNJAB: A MULTI CASE STUDY ANALYSIS

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Umer Ameem , Zahida Mansoor, Ali Raza
Keyword(s):  
Public Sector ◽  
Student Performance ◽  
Quantitative Research ◽  
Classroom Practices ◽  
Sampling Technique ◽  
Considerable Effect ◽  
Positive Trend ◽  
The Public ◽  
The Impact

The study explores the effect of Universal Primary Enrollment (UPE) initiative on the classroom practices in the public sector schools in Punjab. Access to primary education is an identified goal for a number of developing countries where determined efforts for achieving the targets for school going children are nearing fruition. Although the UPE drive in the public sector schools shows a positive trend towards the achievement of enrollment targets, however the increased enrollment has also affected the standard of education in public sector schools. The study used a multi case study approach by means of a quantitative research design. Three different schools from three different districts were selected as sample using purposive sampling technique purposively from the public sector schools of Punjab. Classroom observations were conducted for the understanding of increased enrollment impact on teachers’ practices in class. Each case was observed for a week; each observation checklist category was observed on separate week days. The finding of the study reveal that the increase in student enrollments had a considerable effect on teachers’ performance as the bigger class sizes, created problems in managing the class; score student work, and provide responses on student performance. The substantial increase in the workload puts teachers under pressure and makes it challenging to efficiently manage a positive learning environment.  

scholarly journals Perhitungan Beban Pencemaran Air Sungai Cibabat Kota Cimahi Provinsi Jawa Barat

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Mochammad Azhar Rais Alfaroby ◽  
Eka Wardhani
Keyword(s):  
Water Quality ◽  
Secondary Data ◽  
Domestic Wastewater ◽  
Quality Analysis ◽  
Wastewater Management ◽  
Pollutant Load ◽  
Effective Technology ◽  
Different Seasons ◽  
And Control

The lack of domestic wastewater management services in the Cibabat River Basin has resulted in the Cibabat River being a place to collect domestic wastewater. This of course can reduce water quality  as well as reduce the function of the river itself.  The Cibabat river is known to be a sub-watershed of the Citarum River with a surface   area of  1,855 km2. Activities in the Cibabat watershed  contribute  to the pollution load that  causes the water quality of the Cibabat River to decline, which of course has an impact on the decrease  in the quality of the river and increase  in the polluting  load that the river will receive. The research method uses the calculation of the pollutant  load based on Permen LH 115/2003. The data used are  secondary data from DLH Cimahi City, which  conducted a water quality analysis at three points during  three different seasons in 2019. One of the steps to overcome and control the pollution that occurs is to determine the actual pollutant load so that it can easily determine the application of effective technology  for controlling river water pollution  in the Cibabat River at theCimahi City.

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