Importance of maintenance in rainwater harvesting systems: a case study

2015 ◽  
Vol 16 (1) ◽  
pp. 97-103 ◽  
Author(s):  
Ju Young Lee ◽  
Hyoungju Kim ◽  
Mooyoung Han
Keyword(s):  
Water Quality ◽  
Rainwater Harvesting ◽  
Oxygen Demand ◽  
Total Coliform ◽  
E Coli ◽  
Harvesting Systems ◽  
Microbiological Parameters ◽  
Proper Operation

In this study, the quality of collected rainwater at a downtown middle school rainwater harvesting system was evaluated by measuring physical, chemical, and microbiological parameters such as pH, dissolved oxygen (DO), chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), NO3, PO4, total coliform (TC), Escherichia coli , and some metals (i.e. Al, Cr, Mn, Zn, Cu, As, Cd, and Pb) (2003 to 2011). The analysis shows that the collected water quality is poor, which presents health, considering the high levels of bacterial indicators detected in the harvested rainwater, i.e. turbidity (1.4 to 15.5 NTU) and E. coli (120 and 35 CFU/100 mL in 2007 to 210 and 60 CFU/100 mL in 2011). This study shows that deteriorating water quality was caused by system contamination due to the absence of maintenance. Based on this study, proper operation and maintenance are generally the simplest and most effective ways of maintaining water quality.

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

scholarly journals Water Quality of Rooftop Rainwater Harvesting System (MyRAWAS)

2021 ◽  
Vol 880 (1) ◽  
pp. 012039
Author(s):  
N U M Nizam ◽  
M M Hanafiah ◽  
M B Mokhtar ◽  
N A Jalal
Keyword(s):  
Water Quality ◽  
Rainwater Harvesting ◽  
Oxygen Demand ◽  
Total Coliform ◽  
Coliform Bacteria ◽  
Temperature Conductivity ◽  
Average Value ◽  
Safe Level ◽  
Before And After

Abstract Prolonged drought, population growth and water demand for various purposes have increased the water scarcity issue. To overcome this issue, a rainwater harvesting system can be utilized as an alternative for clean water supply. A rainwater harvesting system is a method of collecting rainwater from man-made surfaces such as rooftops and constructed surfaces and can be used for various sectors including household, agricultural and commercial. This study was conducted to determine the quality of rainwater harvested collected directly from rooftop. The quality of the rooftop rainwater was taken in three consecutive months and the water quality for before and after treatment was measured and compared. Commercial activated carbon was used to treat the rainwater obtained from the rooftop. The water quality was compared with the Water Quality Index (WQI) and the National Water Quality Standards (NWQS). The parameters involved are pH, temperature, conductivity, dissolved oxygen (DO), total suspended solids (TSS), ammoniacal nitrogen (NH3-N), biochemical oxygen demand (BOD), chemical oxygen demand (COD),E.coli and total coliform bacteria. The results showed that the total value of WQI before and after treatment was 86.3 ± 8.963 and 87.6±2.081, respectively. Positive correlations were found for parameter NH3-N, COD and pH, while paired T-test showed a significant in the COD and the presence of bacteria. Total Coliform is still at a safe level by NWQS with the average value and the standard deviation for before and after treatment were 38.11 ± 13.960 cfu/ml and 10.33 ± 6.671 cfu/ml, respectively.

scholarly journals WATER QUALITY ANALYSIS: A CASE STUDY IN BYRAMANGALA LAKE WATER AND SURROUNDING GROUND WATER

2017 ◽  
Vol 5 (4RASM) ◽  
pp. 71-77
Author(s):  
Babitha Rani ◽  
Dimple Bahri ◽  
Prabin Neupane ◽  
Kunal Kothari ◽  
Vishal Gadgihalli ◽  
...  
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Lake Water ◽  
Suspended Solids ◽  
Quality Analysis ◽  
Total Hardness ◽  
Water Quality Analysis ◽  
E Coli

A study was carried out to find out the water quality ofByramangala lake of Ramanagara district. The water quality of Byramangala lake water and ground water from bore wells situated in the area within 600 meters surrounding the lake was analyzed. The quality analysis of various parameters such as BODs, COD, DO, E-Coli, and pH, Total Dissolved Solids, Total Suspended Solids and Total Hardness were tested. In addition, the presence of metals such as Cadmium (Cd), Chromium (Cr), Lead (Pb), and Iron (Fe) in the lake water and ground water samples were tested. Results for the various tests conducted showed similar trends for both lake water and ground water. It was observed that certain parameters such as BOD5, and COD were beyond permissible limits as per the BIS standards for drinking water. A few remedial measures have been proposed that may help in mitigating the pollution in the selected project area Byramangala Lake.

scholarly journals Land use and its impacts on the water quality of the Cachoeirinha Invernada Watershed, Guarulhos (SP)

2018 ◽  
Vol 13 (1) ◽  
pp. 1 ◽  
Author(s):  
Dhisney Gonçalves de Oliveira ◽  
Reinaldo Romero Vargas ◽  
Antonio Roberto Saad ◽  
Regina De Oliveira Moraes Arruda ◽  
Fabrício Bau Dalmas ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Waste Treatment ◽  
Oxygen Demand ◽  
Trophic State Index ◽  
Microbiological Analysis ◽  
Urban Centers ◽  
E Coli ◽  
Quality Of Water

The urbanization process through which large urban centers have been passing has drastically affected the availability and especially the quality of water. The Cachoeirinha Invernada Watershed (CIW), located in the municipality of Guarulhos (State of São Paulo, Brazil), includes areas with different land use classes. This paper aims to correlate the spatial and temporal effects of land use and land cover on the water quality of the Cachoeirinha Invernada Watershed. In a period of 12 months and at six sampling points along the watershed, the physicochemical parameters temperature (T), pH, turbidity (TU), total solids (TS), electrical conductivity (EC), total phosphorus (TP), biochemical oxygen demand (BOD), as well as microbiological analysis (E. coli) were measured. Water quality was assessed using a modified version (WQIM) of the Water Quality Index (WQI) and the Trophic State Index (TSI). The areas surrounded by urban development presented a marked worsening in water quality, with the downstream point most affected and ranked as ‘POOR’. From the evaluated parameters, what contributed most to water quality degradation of the Cachoeirinha Invernada Watershed (CIW) was E. coli, followed by BOD, and TP, all parameters related to the presence of sewage in the water. The need for the construction of sewerage and waste treatment, protection and recovery of riparian forests, and environmental education regarding waste disposal are necessary to significantly improve the environmental quality of the Cachoeirinha Invernada Watershed.

scholarly journals Water Management of River Beaches—A Portuguese Case Study

Geosciences ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 152
Author(s):  
Maria Oliveira ◽  
Margarida Antunes ◽  
Ana Carvalho
Keyword(s):  
Water Quality ◽  
Physicochemical Parameters ◽  
Continuous Monitoring ◽  
Water Quality Management ◽  
Quality Of Water ◽  
Microbiological Parameters ◽  
Awareness Raising ◽  
The Town

The quality of water is crucial for the qualification of river beaches. The Cávado River watershed (Northern Portugal) contains five river beaches with a regular and specific mandatory monitorization. The main subject of this research is the evaluation of spatial and temporal water microbiological and physicochemical parameters to assess the water quality improvement and consequently watershed management. The results of monitoring surface water, considering microbiological parameters from the five river beaches (2015/19), and physicochemical parameters from three water points along the Cávado River (2018/19) were considered. The river beaches located upstream of the town of Braga has an “excellent” and “good” quality, while the river beach located downstream shows a lower water quality. The physicochemical water results indicated that there is a progressive degradation of water quality from upstream to downstream of the river, which is associated with the influence of domestic and industrial activities. To improve water quality, continuous monitoring will be necessary, with the implementation of adequate awareness-raising programs and strategic water quality management by the population and local agents.

scholarly journals Hubungan Kualitas Air Bersih Sumur Gali Terhadap Penyakit Diare di Desa Montop Kabupaten Banggai Kepulauan

2019 ◽  
Vol 10 (2) ◽  
pp. 80-84
Author(s):  
Sandy Novryanto Sakati ◽  
Herawati Herawati
Keyword(s):  
Water Quality ◽  
Diarrheal Disease ◽  
Descriptive Analysis ◽  
Water Source ◽  
Total Coliform ◽  
Clean Water ◽  
Cross Sectional ◽  
E Coli ◽  
Dug Well

Penyakit  diare  merupakan  salah  satu  penyakit  yang  masih  merupakan  masalah kesehatan terbesar di Indonesia. Penyakit diare bisa disebabkan oleh beberapa faktor yaitu faktor lingkungan dan kualitas Air Bersih Oleh karena itu, keadaan lingkungan dan kualitas air bersih yang tidak baik berpengaruh terhadap timbulnya penyakit.  Desa Montop merupakan salah satu desa yang berada di kecamatan Bulagi Utara Kabupaten Banggai Kepulauan yang masyarakatnya menkonsumsi air yang bersumber dari Sumur Gali. Berdasarkan data UPTD Puskesmas Sabang Tahun 2017 terdapat kasus Kejadian Luar Biasa (KLB) penyakit diare dengan penderita 45 orang dan 1 orang dinyatakan meninggal, pada tahun 2018 data penderita diare terdapat 24 orang (Januari-Juli). Tujuan penelitian ini adalah Untuk mengetahui hubungan kualitas air sumur gali dengan kejadian penyakit Diare di Desa Montop. Penelitian ini merupakan penelitian dalam bentuk survey yang bersifat observasional dengan metode pendekatan cross-sectional, yaitu suatu penelitian yang dilakukan dengan pengamatan sesaat atau dalam suatu periode waktu tertentu dan setiap subjek studi hanya dilakukan satu kali pengamatan selama penelitian. Hasil penelitian menunjukan bahwa hasil uji kualitas air bersih berdasarkan parameter E. Coli masih memenuhi syarat kesehatan sesuai dengan Permenkes 416 Tahun 1990 tentang air bersih. Sementara, untuk parameter Total Coliform terdapat hasil yang tidak memenuhi syarat kesehatan pada Lokasi SGL 3 dan SGL 5 artinya analisis secara deskriptif ada hubungan sumber air utama dengan kejadian diare karena terdapat 2 SGL yang Total Coliform nya Tidak Memenuhi Syarat Kesehatan. Diarrhea is one of the diseases that is still the biggest health problem in Indonesia. Diarrhea can be caused by several factors, environmental factors and the quality of clean water. Therefore, environmental conditions and the quality of clean water that is not good influences the onset of the disease. Montop Village is one of the villages in the North Bulagi sub-district of Banggai Kepulauan Regency whose people consume water sourced from the Gali Well. Based on data from Sabang Health Center UPTD in 2017 there were cases of Extraordinary Events of diarrhea with 45 patients and 1 person was declared dead, in 2018 the data of diarrhea patients there were 24 people (January-July). The purpose of this study was to determine the relationship of dug well water quality with the incidence of diarrheal disease in the village of Montop. This research is an observational survey with a cross-sectional approach, which is a study conducted with observations for a moment or in a certain period of time and each subject of study was only made one observation during the study. The results showed that the water quality test results based on E. Coli parameters still met health requirements in accordance with Permenkes 416 of 1990 concerning clean water. Meanwhile, for the Total Coliform parameter, there were results that did not meet health requirements at SGL 3 and SGL 5 locations, meaning that the descriptive analysis was related to the main water source with the occurrence of diarrhea because there were 2 SGLs whose Total Coliform did not meet health requirements.

scholarly journals Water quality of the Atibaia river in the city of Paulínia/SP: evaluation of the Electrical Conductivity and Chloride variables

2021 ◽  
Vol 43 ◽  
pp. e66
Author(s):  
Camila Pereira Montovani ◽  
Cassiana Maria Reganhan Coneglian ◽  
Elaine Cristina Catapani Poletti
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Pearson Correlation ◽  
Oxygen Demand ◽  
Principal Component ◽  
E Coli ◽  
Thermotolerant Coliforms ◽  
Linear Correlation Analysis ◽  
The City

The present study aimed to evaluate the characteristics that most influenced the water quality variability of the Atibaia river in the city of Paulínia/SP, the coordinates of the water collection point are given by 22º44'23”(S) and 47º07 ' 40 ”(W), in the dry and rainy seasons, from 2006 to 2016. The data used in this study come from the monitoring of parameters carried out in the spring by a research team, accompanied by periodic collections of surface water samples and analyzes laboratory tests. The parameters addressed included: precipitation, temperature, Hydrogenionic potential (pH), turbidity, thermotolerant coliforms (Escherichia coli (E. coli)), dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (Ntotal), total phosphorus (Ptotal), total dissolved solids (TDS), electrical conductivity (EC) and chlorides (Cl-). Water quality was assessed using linear correlation analysis, using the Pearson Correlation coefficient (r), and Multivariate Analysis, using Principal Component Analysis (PCA). The presence of EC, Cl- and COD in both periods indicates quality characteristics related to the mineralization of organic compounds present in the water and the eutrophication process.

scholarly journals Monitoring of urban and rural basins: water quality of Mourão basin

2015 ◽  
Vol 75 (4 suppl 2) ◽  
pp. 158-164 ◽  
Author(s):  
F. H. Passig ◽  
S. B. Lima ◽  
K. Q. Carvalho ◽  
M. C. R. Halmeman ◽  
P. C. Souza ◽  
...  
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Rural Areas ◽  
Oxygen Demand ◽  
Fecal Coliforms ◽  
Dry Period ◽  
Volatile Solids ◽  
Microbiological Parameters ◽  
Nitrite Nitrate

The Mourão River basin is located on the central western region of the Paraná State – Brazil, between coordinates 23º 44’ - 24º 25 South latitude and 52º 12’ - 52º 30’ West longitude, between 270 and 820 m above sea level, and 1,648.21 km2 drainage area. Water quality was evaluated by monitoring physical, chemical and microbiological parameters. Monthly samplings were performed for a year at five sites in the basin for analysis of: pH, temperature, dissolved oxygen, biochemical oxygen demand, total nitrogen, ammoniacal nitrogen, nitrite, nitrate, total phosphorus, turbidity, total solids, volatile solids and fecal coliforms. The results of the evaluated parameters showed higher values than the limits set by CONAMA Resolution 357 from 2005 for Class 2 in some samples. The Water Quality Index (WQI) indicated that 72% of samples had average quality and 28% had good quality for the Mourão River basin. Higher values of WQI were observed after rainfall period with median of 75 compared to the dry period with median of 62. The source of the Mourão River is contaminated with fecal coliforms, evidencing the real need to treat sewage in rural areas.

Impact of climate change on the future quality of surface waters: case study of the Ardak River, northeast of Iran

2019 ◽  
Vol 11 (3) ◽  
pp. 685-702 ◽  
Author(s):  
Morteza Nikakhtar ◽  
Seyedeh Hoda Rahmati ◽  
Ali Reza Massah Bavani
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
General Circulation ◽  
Oxygen Demand ◽  
Circulation Model ◽  
Quality Parameters ◽  
Quality Of Water ◽  
Monthly Streamflow

Abstract In recent decades, climate change has influenced the quantity and quality of water resources, affecting water supply for various demands. In this case study, the effects of climate change on the quality of the Ardak River in the northeast of Iran are discussed. The Qual2kW model was used to simulate water quality parameters, by sampling dissolved oxygen (DO), pH, chemical oxygen demand (COD), and NO3. The rainfall-streamflow model IHACRES was used for simulating monthly streamflow. Monthly general circulation model (GCM) temperature and rainfall data from representative concentration pathways (RCP) RCP2.6 and RCP8.5 were downloaded for 1986 to 2005 and 2020 to 2039. The previously verified model LARS-WG was used to predict future temperatures and rainfall. By importing this data into IHACRES, stream flows were simulated, enabling Qual2kW to predict future effects on water quality. Although changes in temperature of 0.5 to 1.2 °C were predicted, maximum changes in temperature and rainfall will occur in winter and summer in series. Therefore, water quality was predicted to decrease only on the Abghad branch, due to increased temperature and lower flow rates. The highest percentage variations in DO and NO3 are −12.19 and 31.25 in RCP8.5 and in COD and PH, −35.4 and 0.29 in RCP2.6.

scholarly journals Sustainability of Rainwater Harvesting System in terms of Water Quality

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Sadia Rahman ◽  
M. T. R. Khan ◽  
Shatirah Akib ◽  
Nazli Bin Che Din ◽  
S. K. Biswas ◽  
...  
Keyword(s):  
Water Quality ◽  
Energy Savings ◽  
Rainwater Harvesting ◽  
Sustainable Use ◽  
Total Coliform ◽  
Quality Parameters ◽  
Quality Of Water ◽  
The Cost ◽  
Supply Water

Water is considered an everlasting free source that can be acquired naturally. Demand for processed supply water is growing higher due to an increasing population. Sustainable use of water could maintain a balance between its demand and supply. Rainwater harvesting (RWH) is the most traditional and sustainable method, which could be easily used for potable and nonpotable purposes both in residential and commercial buildings. This could reduce the pressure on processed supply water which enhances the green living. This paper ensures the sustainability of this system through assessing several water-quality parameters of collected rainwater with respect to allowable limits. A number of parameters were included in the analysis: pH, fecal coliform, total coliform, total dissolved solids, turbidity, NH3–N, lead, BOD5, and so forth. The study reveals that the overall quality of water is quite satisfactory as per Bangladesh standards. RWH system offers sufficient amount of water and energy savings through lower consumption. Moreover, considering the cost for installation and maintenance expenses, the system is effective and economical.

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