scholarly journals Effluent Water Quality of Small-scale On-site Treatment Facilities for Household Waste-water and Nitrogen Removal Performance with Recycle Operation.

1998 ◽  
Vol 21 (3) ◽  
pp. 157-162 ◽  
Author(s):  
Yoko FUJIMURA ◽  
Jun NAKAJIMA
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Nitrogen Removal ◽  
Household Waste ◽  
Small Scale ◽  
Effluent Water ◽  
Treatment Facilities

Predictive performance modeling of Habesha brewery wastewater treatment plant using artificial neural networks

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Neural Networks ◽  
Water Quality ◽  
Wastewater Treatment ◽  
Artificial Neural Networks ◽  
Performance Modeling ◽  
Predictive Performance ◽  
Mathematical Tool ◽  
Effluent Water ◽  
Artificial Neural

Recently, process control in wastewater treatment plants (WWTPs) is, mostly accomplished through examining the quality of the water effluent and adjusting the processes through the operator’s experience. This practice is inefficient, costly and slow in control response. A better control of WTPs can be achieved by developing a robust mathematical tool for performance prediction. Due to their high accuracy and quite promising application in the field of engineering, Artificial Neural Networks (ANNs) are attracting attention in the domain of WWTP predictive performance modeling. This work focuses on applying ANN with a feed-forward, back propagation learning paradigm to predict the effluent water quality of the Habesha brewery WTP. Data of influent and effluent water quality covering approximately an 11-month period (May 2016 to March 2017) were used to develop, calibrate and validate the models. The study proves that ANN can predict the effluent water quality parameters with a correlation coefficient (R) between the observed and predicted output values reaching up to 0.969. Model architecture of 3-21-3 for pH and TN, and 1-76-1 for COD were selected as optimum topologies for predicting the Habesha Brewery WTP performance. The linear correlation between predicted and target outputs for the optimal model architectures described above were 0.9201 and 0.9692, respectively.

scholarly journals An Assessment of Drinking Water Quality in Cauvery Delta Region and Palar Region, Tamil Nadu

2017 ◽  
Vol 3 (12) ◽  
pp. 238
Author(s):  
R. Sophia Porchelvi ◽  
P. Selvavathi
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
River Basin ◽  
Tamil Nadu ◽  
Large Scale ◽  
Anthropogenic Activities ◽  
Small Scale ◽  
Drinking Purposes ◽  
Cauvery Delta

Delta regions of the Cauvery River basin are one of the significant areas of rice production in India. In spite of large-scale utilization of the river basin for irrigation and drinking purposes, the lack of appropriate water management has seemingly deteriorated the water quality due to increasing anthropogenic activities. Vellore is the second most populous district of Tamil Nadu in India where the Palar River flowing towards east for about 295 Km. Vellore is surrounded by many leather tanneries and small scale dying industries and their effluents are discharged into the Palar river causing impact on the quality of the underground water. To assess the extent of deterioration, physicochemical characteristics of surface water were analyzed select regions of Cauvery Delta River basin and Palar region, Tamil Nadu, during March 2016 to May 2016. This study aimed to examine quality of drinking groundwater. The results represented whether the water was suitable or unsuitable for drinking purposes in this area. It was also observed that some areas like Tiruvarur, Needamangalam, Kamalapuram, Arcot, Soraiyur, Ranipet had low quality drinking water. It is suggested to take some necessary measures for supplying desirable water to the people living in these areas.

scholarly journals Assessment of Surface Water Quality of Mayur River in Khulna City

2021 ◽  
Author(s):  
Md. Mahadi Hashan ◽  
S.M. Moniruzzaman
Keyword(s):  
Water Quality ◽  
River Water ◽  
Water Quality Index ◽  
Quality Index ◽  
Pearson Correlation ◽  
River Water Quality ◽  
Household Waste ◽  
Aquatic Life ◽  
Phosphate Nitrate

Abstract River water quality is one of the foremost concerns now a days as it plays a significant role in human and aquatic life. Mayur River, located on the northwestern side of the Khulna city, is important from numerous points of view like freshwater reservoir, navigation, water source for irrigation, ground for fishing and the main wastewater route of Khulna city. However along with human interruption, the unplanned and untreated crude dumping of domestic, industrial and household waste into it, the natural flow of the river is totally retarded and the river water quality has been degraded on a large scale due to water pollution. This pollution has colossal negative impact on day to day life of the inhabitants living alongside of this river as they use this water for domestic and sometimes drinking purposes. That is where the significance of assessing the water quality of Mayur River has come from. The core objectives of this study is to assess the water quality of Mayur River and to develop a model using statistical analysis between water quality parameters (WQP) and water quality index (WQI) to interpret relationship among them. Water quality was assessed on the basis of WQI calculation using National Sanitary Foundation water quality index method. The temporal WQI value showed that the water quality in Mayur River got worse in dry season than that of wet season due to dilution. Much higher values were obtained in case of biochemical oxygen demand (BOD), turbidity, total solids (TS), chloride, phosphate, nitrate and fecal coliform (FC). Pearson correlation coefficient shows negative relationship among temporal average WQI with other parameters except pH. Regression analysis indicates that 99.7% proportion of variance of dependent variable (temporal average WQI) can be predicted from the independent variables (Dissolved Oxygen (% saturation), BOD, turbidity, TS, pH, temperature change, phosphate, nitrate and FC). Total nine prediction equations were formed using regression coefficients that may be helpful to predict the WQI on the basis of WQP in future.

scholarly journals Water consumption and environmental behavior of the residents in Lake Toba water catchment area, North Sumatra, Indonesia

2021 ◽  
Vol 909 (1) ◽  
pp. 012002
Author(s):  
A H Harianja ◽  
R Fauzi ◽  
G S Saragih ◽  
M Y Hidayat ◽  
A E Suoth
Keyword(s):  
Water Quality ◽  
Water Consumption ◽  
Catchment Area ◽  
Water Source ◽  
Household Waste ◽  
Drinking Water Source ◽  
Water Catchment Area ◽  
Area North ◽  
Water Catchment

Abstract One of seventeen points of Sustainable Development Goals (SDGs) is to provide clean water for at least 80% of the global population in 2025. Rural populations living surrounding Lake Toba water catchment area still utilize the lake water for daily use regardless of the susceptible decreasing water quality. This paper describes anthropogenic aspects affecting the water quality of Lake Toba that is consumed as the drinking water source by surrounding residents. The research used a quantitative approach by interviewing 130 household representatives from 3 regencies around the lake to calculate the water consumption and evaluate the water quality in 2018. In addition, this research also assessed the residents' behavior in managing household waste and wastewater. The result showed that the average water consumption is 86,93L/person/day. The majority of the respondents barely treat the water and feel satisfied with the water quality based on its color, turbidity, taste, and odor. On the contrary, the respondents have not adequately treated their domestic waste and household wastewater before being released to the lake, contributing to water pollution. Although most respondents are satisfied with the water quality, it is still needed to perform proper water treatment because the water quality of Lake Toba is reported as slightly up to heavily polluted by the Ministry of Environment and Forestry in 2019.

scholarly journals Pemantauan Kualitas Air Sungai Digoel, Distrik Jair, Kabupaten Boven Digoel, Papua

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Rosye H.R. Tanjung ◽  
Hendra K. Maury ◽  
Suwito Suwito
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Treatment Plant ◽  
Quality Standard ◽  
Total Coliform ◽  
Waste Water Treatment Plant ◽  
Organic Chemical ◽  
Industrial Activity ◽  
The Impact

Digoel river have an important role to the human activity and environment in Boven Digoel Regency. Increasing of human and industrial activity around the watershed of Digoel River were suspecious to cause the degradation water quality in Digoel River. This research was done to monitor the impact of the industrial activity to the quality of water in outlet of waste water treatment plant(WWTP) of PT. Korindo to the water quality of Digoel River. Parameter analised are the physical, chemical, organic chemical, microbiology and metal content in water. Analysis of the water quality accordance to PP Nomor 82 Tahun 2001 about water quality managementand water pollution and Permen LH Nomor 5 tahun 2014 about the quality of waste water.The monitoring was conducted in three months at five sampling stasion (river upstream, river down stream, outlet WWTP plywood, outlet WWT workshop, outlet WWTP palm oil) in Districk Jair. The rsult showed, parameter of BOD, COD, phospate, phenol and total coliform in Digoel River exceeded class I of water quality standards. Outlet of plywood WWTP have two parameters that exceed the quality standard which were TSS 15.67 mg/L and phenol 13.33 mg/L.The outlet of WWTP workshop have four pameter exceeded the quality standard which were TSS (383.67 mg/L), oil/fats (502.0 µg/L), phenol (11.0 µg/L), and zinc (21,000 mg/L). IPAL oil WWTP outlet have two parameter sexceeded the quality standars which were oil/fats (313.0 µg/L) and total coliform (> 979 cells/100 mL). The result indicating  that the status of water quality of Digoel River are categorized as “lightly polluted”. Therefore based on utilization, it was categorized as class IV water quality that can be used for irrigating, planting and other purposed that meet the requairement of water qualiy in this class, while for other uses need necessary processing. In order  not to  increase the pollution in the Digoel river the WWTP of industry around Digoel River should improved their treatment, so that waste water discharged to the Digoel River not exceed the stanards quality.Key words: water quality, digoel river, status of water quality, pollutant index.

PUBLIC PERCEPTION OF ONLINE MONITORING SYSTEM INSTALLATION IN CILIWUNG RIVER

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Satmoko Yudo
Keyword(s):  
Water Quality ◽  
River Water ◽  
Monitoring System ◽  
Public Perception ◽  
Online Monitoring ◽  
Water Quality Monitoring ◽  
Household Waste ◽  
Quality Technology ◽  
Online Monitoring System

Ciliwung River flows through the city center and passes through the village, dense housing and slums. So that the river is experiencing the most severe pollution mainly household waste water and industrial pollution compared with other rivers that flow in Jakarta. One of the efforts to control pollution of the river is by monitoring the water quality of the river. This monitoring should be carried out continuously online to analyze the quality of water entering or residing in the water bodies. To support the plan of installing online monitoring system of river water quality is necessary to know the perception of people who are in locations where the system installed. This is done with the aim to socialized the implementation plan and to determine the support and participation of the public in the vicinity. The results of this study show that the majority of the population supports the installation of technology online water quality monitoring in the Ciliwung River. With the hope that people can know directly how the conditions of Ciliwung River water quality.Key words: Ciliwung river, online monitoring of water quality technology, public perception

Some Water Quality Studies in Petroleum Refineries

1974 ◽  
Vol 9 (1) ◽  
pp. 320-327
Author(s):  
G. G. Tertipis ◽  
C. M. Pyburn
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Water Conservation ◽  
Suspended Solids ◽  
Grab Sampling ◽  
Environmental Requirements ◽  
Plant Data ◽  
Petroleum Refineries ◽  
Solids Removal

Abstract The general approach to water quality studies in Gulf Canada petroleum refineries is described and illustrated by typical results from one refinery. Some of the studies were carried out using a Mobile Water Conservation Laboratory on site whilst others involved grab sampling and transportation to a central laboratory. The studies were carried out with the objective of evaluating the efficiency of existing waste water treating systems to produce effluent of quality which will meet modern environmental requirements set by the Federal Government. These include oil, suspended solids, sulfide, ammonia, phenols, pH and a fish toxicity requirement. The quality of the effluents of several large and complex refineries was monitored, performance of waste water treating units was determined and pilot plant data of new packaged units was collected for future uses. Emphasis was placed on treating units which are used to treat waste streams and effluents for oil and suspended solids removal.

Assessing the groundwater quality of a small-scale mining drainage basin using modified water quality indices

2021 ◽  
Vol 14 (16) ◽  
Author(s):  
Olufemi Victor Omonona ◽  
Amobi Chigozie Ekwe ◽  
George-Best Azuoko ◽  
Stephen N. Ukpai
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Drainage Basin ◽  
Small Scale ◽  
Quality Indices ◽  
Water Quality Indices
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