River Water Intake Research Articles

Evaluating Flood Susceptibility in the Brahmaputra River Basin: An Insight into Asia's Eastern Himalayan Floodplains Using Machine Learning and Multi-Criteria Decision-Making

Floods represent a significant threat to human life, property, and agriculture, especially in low-lying floodplains. This study assesses flood susceptibility in the Brahmaputra River basin, which spans China, India, Bhutan, and Bangladesh—an area notorious for frequent flooding due to the saturation of river water intake capacity. We developed and evaluated several innovative models for predicting flood susceptibility by employing Multi-Criteria Decision Making (MCDM) and Machine Learning (ML) techniques. The models showed robust performance, evidenced by Area Under the Receiver Operating Characteristic Curve (AUC-ROC) scores exceeding 70% and Mean Absolute Error (MAE), Mean Squared Error (MSE), and Root Mean Squared Error (RMSE) scores below 30%. Our findings indicate that approximately one-third of the studied region is categorized as moderately to highly flood-prone, while over 40% is classified as low to very low flood-risk areas. Specific regions with high to very high flood susceptibility include Dhemaji, Dibrugarh, Lakhimpur, Majuli, Darrang, Nalbari, Barpeta, Bongaigaon, and Dhubri districts in Assam; Coochbihar and Jalpaiguri districts in West Bengal; and Kurigram, Gaibandha, Bogra, Sirajganj, Pabna, Jamalpur, and Manikganj districts in Bangladesh. Owing to their strong performance and the suitability of the training datasets, we recommend the application of the developed MCDM techniques and ML algorithms in geographically similar areas. This study holds significant implications for policymakers, regional administrators, environmentalists, and engineers by informing flood management and prevention strategies, serving as a climate change adaptive response within the Brahmaputra River basin.

Fish guidance system for a river water intake - experimental and numerical study

Fish guidance systems associated to water intakes represent an important feature, mandatory to prevent fish from being accidentally drawn into artificial hydraulic facilities. Such systems are recommended for a proper integration of the water intake into the surrounding environment and contribute to reducing the impact on the environment. In this paper a prototype of fish guidance system which can be applied to river water intakes is presented and analysed. The fish are guided by means of an air bubbles curtain, which influence the flow of the water. This study was performed numerically in Fluent software and experimentally in laboratory conditions. Velocity distribution maps were achieved using Particle Image Velocimetry technique for two water flowrates. The results presented in the paper are a part of the recorded data, and have the purpose to validate the numerical model for the case without air bubbles curtain. A second purpose is to evaluate the changes caused by the bubbles curtain on the water velocity. The results obtained by numerical simulations are in good correlation with the experimental results performed using PIV technique and demonstrate that the fish guidance systems associated to water intakes can represent an efficient solution for fish protection in their natural environment.

EVALUATION OF THE GETAVAN-1 HYDROSCHEME'S SEDIMENTATION REGIME AND THE CREATION OF SEDIMENT ACCUMULATION FLUSHING EFFECTIVE MEASURES

The volume of sediment accumulations in the upstream reach of the dam and the selection of an efficient flushing measurse are determined by the accurate hydrological regime assessment that is made when designing run-of-river structures. In the Tartar River's water intake head sedimentation regime was investigated, the potential accumulation volumes on the dam's upper side were calculated, and a functional design for the deposited sediment flushing unit’s operation scheme was developed. Due to the lack of necessary data, the flow rate in the Tartar River water receiving head was measured using three parallel methods that were discovered through research on local watercourses. A comparative analysis of three sediment flow values was done and its calculated value is defined, on the basis of which the annual volume of sediment subject to accumulation in front of the dam of the head and the possible infilling size of the sediment in the upstream reach was determined. The rational placement of the outlets for flushing deposited sediment is shown while taking into account the volume of deposits, the geometric properties of the head, and its upstream reach.

Enhanced Prediction and Determination of Hydrological Drought at Ungauged River Intake Stations under Changing Climate

Droughts, which are expected to worsen under global climate change, have major impacts on human life and the natural environment. In this study, an analysis system was established for predicting and determining hydrological drought conditions at ungauged water stations and in watersheds connected to municipal river water intake facilities. The aim was to help prevent drought damage or minimize its effects based on an immediate response to severe drought events. A system is presented for the selection of ungauged watersheds that take in river water, and three methodologies are proposed for identifying and forecasting hydrological drought conditions. Two South Korean pilot sites among the numerous ungauged water intake plants that lack local data collection facilities were selected as study areas. In addition, a roadmap for the establishment of standards for the determination of drought conditions in ungauged river basins was proposed. The methodologies introduced in this study assume nationwide expansion and construction. Their utilization can facilitate effective drought responses, based on drought forecasting and restricted water supply criteria for each phase of water intake, at local (and other) waterworks.

Culture and molecular methods as complementary tools for water quality management

Bacterial communities in a full-scale drinking water treatment plant (DWTP) were characterized using matrix-assisted laser desorption/ionization time of flight mass-spectrometry (MALDI-TOF MS) to identify HPC isolates and the obtained results were compared to 16S rRNA (V4) metabarcoding data acquired in a previous study. Sixty-three samples were collected at nine stages of the potabilization process: river water and groundwater intake, decantation, sand filtration, ozonization, carbon filtration, reverse osmosis, the mixing chamber and post-chlorination drinking water. In total, 1807 bacterial colonies were isolated, 32 % of which were successfully identified to at least the genus level by MALDI-TOF MS using our previously developed Drinking Water Library. Trends in diversity were similar by both approaches, but differences were observed in the detection of taxa, especially at lower hierarchy levels. High bacterial diversity was observed in river and groundwater, where Proteobacteria predominated. The diversity decreased significantly after the chlorination step, where Bacillus sp. (Firmicutes) and an unknown genus of Obscuribacteraceae (Cyanobacteria) were the most prevalent genera according to MALDI-TOF MS and metabarcoding, respectively. The two approaches gave similar results for the decantation, sand filtration and mixing chamber steps, where the most abundant taxon was Flavobacterium. The combined use of these culture-based and culture-independent methods to characterize microbial populations may help to better understand the role of bacteria in water treatment and quality, which will be of value for DWTP management.

Monitoring Bacterial Community Dynamics in a Drinking Water Treatment Plant: An Integrative Approach Using Metabarcoding and Microbial Indicators in Large Water Volumes

Monitoring bacterial communities in a drinking water treatment plant (DWTP) may help to understand their regular operations. Bacterial community dynamics in an advanced full-scale DWTP were analyzed by 16S rRNA metabarcoding, and microbial water quality indicators were determined at nine different stages of potabilization: river water and groundwater intake, decantation, sand filtration, ozonization, carbon filtration, reverse osmosis, mixing chamber and post-chlorination drinking water. The microbial content of large water volumes (up to 1100 L) was concentrated by hollow fiber ultrafiltration. Around 10 million reads were obtained and grouped into 10,039 amplicon sequence variants. Metabarcoding analysis showed high bacterial diversity at all treatment stages and above all in groundwater intake, followed by carbon filtration and mixing chamber samples. Shifts in bacterial communities occurred downstream of ozonization, carbon filtration, and, more drastically, chlorination. Proteobacteria and Bacteroidota predominated in river water and throughout the process, but in the final drinking water, the strong selective pressure of chlorination reduced diversity and was clearly dominated by Cyanobacteria. Significant seasonal variation in species distribution was observed in decantation and carbon filtration samples. Some amplicon sequence variants related to potentially pathogenic genera were found in the DWTP. However, they were either not detected in the final water or in very low abundance (<2%), and all EU Directive quality standards were fully met. A combination of culture and high-throughput sequencing techniques may help DWTP managers to detect shifts in microbiome, allowing for a more in-depth assessment of operational performance.

Experimental Analysis of a Fish Guidance System for a River Water Intake

This paper describes the experimental study of a behavioural barrier consisting of a bubble curtain placed near an ecological river water intake, aiming to assess the bubble curtain’s influence on the velocity field of water flowing in the water intake proximity. The scientific novelty is given by the water intake solution operating in tandem with the dedicated bubble curtain generator used for avoiding fish entrapment. The water intake solution used in the present research is based on a run-of-river intake without a dam in the riverbed, maintaining the mountain rivers longitudinal connectivity. An experimental setup was designed and built to study the behavioural barrier for ecological water intakes in different operating conditions. Thus, tests were performed for two water velocities (0.33 m/s and 0.535 m/s) in the experimental setup, two water depths (92 mm and 119 mm) and two air flow rates (10.5 LPM and 15 LPM). The results were compared with the case when no air is injected through the bubble curtain generator. The assessment of the bubble curtain influence on the water flow inside the channel was made by measuring and analysing the velocity variation in vertical and horizontal direction. The results showed a significant velocity gradient in the bubble curtain proximity, which can contribute to influencing the behaviour of the fish by deterring them from the water intake area.

Возможности анализа хронических загрязнений водных источников с помощью биоэлектронных систем с двустворчатыми моллюсками

An independent experimental experience of observations of marine mussels (Black Sea mussel Mutilus galloprovincialis) since 2008 in the coastal zone and of freshwater mussels (pearl Unio pictorum) since 2014 at the river water intake point when developing and maintaining automated bioelectronic complexes at control facilities allowed accumulating data on valve activity in various natural conditions. The analysis of the data obtained determined statistical and methodological regional (Crimea) estimates of the valve activity of biosensor mollusks, including annual seasonal and climatic variability, daily and semi-daily periodicity and attenuation against the background of chronic toxicosis, starvation and physiological aging. Studies show that the main indicator of chronic pollution in water bodies for the developed automated biomonitoring systems is the level of group valve activity, which, in case of environmental toxicity, has a pronounced trend towards decline. Inter-annual variability can be analyzed by meeting a number of requirements for the composition and conditions of use of reference groups of mollusks, as well as by considering climate changes. The informativity, from the point of view of autonomous long-term automation of the control process, daily and semi-daily seasonal rhythms is quite doubtful, because they are unstable in the natural environment and depend on a number of natural factors unrelated to toxic pollution. It can be concluded that the main purpose of bioelectronic monitoring systems remains operational analysis and integrated indication of sudden impacts.

新疆白杨河流域特征及生态植被需水分析

PDF HTML阅读 XML下载 导出引用 引用提醒 新疆白杨河流域特征及生态植被需水分析 DOI: 10.5846/stxb201911092362 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 新疆水利科技专项（YF2020-01） Analysis on characteristics of Baiyang River Basin and water requirement of ecological vegetation in Xinjiang Author: Affiliation: Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:新疆白杨河流域地跨上游乌鲁木齐市达坂城及下游吐鲁番市托克逊县两个行政区，上游达坂城区位于天山博格达峰山前冲击、洪积山间盆地干旱区，源于天山多支源流汇集于盆地南端峡口，基于峡口形成下游并由有多支流沿程补给白杨河干流，穿越极端干旱戈壁荒漠区的托克逊县直至末端吐鲁番市境内尾闾-艾丁湖，是我国典型少有的跨越干旱与极端干旱叠加型流域灌区，水资源有效利用及水生态环境保护具有重要作用。遵循流域各河流水系形成的自然生态环境属性及河道取水工程节点，采用Penman-Monteith法生态需水定额和卫星遥感面积识别及水文年内展布方法，分析评估流域内上下游绿洲生态环境植被需水量和河流生态基流及其调控断面。结果表明，上游达坂城区黑沟河年生态需水量、生态基流、年均径流占比和控制断面，分别为921万m3、0.29m3/s、18%和黑沟渠首；阿克苏河为1048万m3、0.33m3/s、12%和阿克苏渠首；高崖子河为862万m3、0.27m3/s、12%和高崖子渠首；下游托克逊境内由白杨河干流调节，艾丁湖等生态需水量分别为4256万m3、1.35m3/s、32%和小草湖渠首。白杨河流域年生态需水7880万m3，生态基流2.50m3/s，生态水占年均径流量17%，分析结果为流域生态环境管理保护提供依据。 Abstract:The Baiyang River Basin extends across two administrative districts including Dabancheng in the upper reaches of Urumqi city and Tuokesun County of Turpan City in the lower reaches, Xinjiang. The upper Dabancheng district is located in the dry area of alluvial and proluvial intermontane basin in front of Bogda peak of Tianshan Mountain. Many branches of source streams converge at the mouth of the southern end of the basin, and form the downstream from the gorge. Many tributaries supply the main stream of Baiyang River along the way. Baiyang River passes through Tuokesun County in the extremely arid Gobi desert and ends at Turpan City-Ayding Lake, one of the few typical irrigation areas in China which spans the superposition of drought and extreme drought. The effective utilization of water resources and protection of water ecological environment play an important role. According to the naturally ecological environment attributes formed by the river water system and the river water intake project nodes, Penman-Monteith ecological water demand quota, satellite remote sensing area identification, and hydrological year distribution method were used to analyze and evaluate water demand of the ecological environment vegetation, river ecological base flow and its regulation sections in the upper and lower reaches of the basin. The results show that the annual ecological water demand, ecological base flow, annual runoff proportion, and control section of Heigou River in Dabancheng district are 921 thousand m3, 0.29 m3/s, 18%, and Heigoutou section respectively; those of Aksu River are 1048 ten thousand m3, 0.33 m3/s, 12%, and Aksu canal head; those of Gaoyazi River are 862 ten thousand m3, 0.27 m3/s, 12%, and Gaoyazi channel head; and those of Ayding Lake are 4256 ten thousand m3, 1.35 m3/s, 32%, and the head of Xiaocaohu, where the downstream Tuokesun is regulated by the main stream of Baiyang River. The annual ecological water demand of Baiyang River Basin is 7880 ten thousand m3, the ecological base flow is 2.50 m3/s, and the ecological water accounts for 17% of the annual runoff. The results provide the basis for the management and protection of ecological environment in the basin. 参考文献 相似文献 引证文献

Industrial application of ceramic nanofiltration membranes for water treatment in oil sands mines

A commercial titania ceramic nanofiltration membrane unit with a permeate flow capacity of 20 m3/h was used to reduce ion concentration, Total Suspended Solids (TSS) and Total Organic Carbon (TOC) in recycle water from a Canadian oil sands mine. This unit, the first of its kind, was tested for almost two years to evaluate membrane performance under actual recycle process water conditions. This paper focuses on the results at a 50% stage cut. A strong correlation between specific flux and rejection was found, with the highest mass rejections observed at the lowest specific flux values. A potential formation of a cake layer on the membrane surface seems to favour the rejection since lower specific flux values improved mass rejection. The analysis of more than 20 ions showed that differences in hydrated ionic sizes and electrostatic phenomena are at play with divalent cations showing the largest rejection. Additional 75–90% TOC and almost 100% TSS rejection was observed. These results indicate that it is possible to implement this technology in an oil sands mine and obtain significant water quality improvements and reducing river water intake.

A study on the estimation of river water intake using the operating time of the pumping station

A study on the estimation of river water intake using the operating time of the pumping station

A study on the applicability of power usage method for the analysis of river water intake

A study on the applicability of power usage method for the analysis of river water intake

Scouring of Replenished Sediment through Reservoir Flood Discharge Affects Suspended Sediment Concentrations at Downstream River Water Intake

Dredging is a commonly used sedimentation management strategy to remove mechanically deposited sediment from reservoirs. However, dredged sediment disposal is costly. Dredged sediment can be considered a beneficial resource and used for riverbed replenishment to prevent downstream riverbed degradation and improve aquatic habitats. This study investigated the feasibility of using dredged deposits with cohesive sediment for replenishment at the Shihmen Reservoir. Using the criterion of critical scour velocity, we conducted hydraulic assessments and identified the feasible replenishment area as the experimental domain. A physical model was developed to mimic the scouring process in the replenishment area. By applying dynamic similarity for scouring fine replenished sediment, we derived the regression relationship between flow-critical velocity and sediment-dry density, and used it for model ratio scaling of the grain size, dry density, and concentration in the physical model. Scoured sediment concentrations were measured to study the scour ratio at various flood discharges. Experimental results indicated that the scour ratio was related to factors such as flood discharge, flood duration, and water content of the replenished sediment. The reduction ratio of the concentration of sediment scoured from the replenishment area to the concentration of sediment at the downstream water intake was approximately 90% in the present study.

WATER QUALITY EVALUATION OF THE OBRZYCA RIVER

The article presents the results of the basic physical and chemical indicators of water quality in the upper and lower reaches of the river Obrzyca. Assessment of water quality is important because of located at the estuary part of the river water intake surface for Zielona Góra . The water from the initial reaches has been qualified to III class of water quality based on the achieved results. According to the Regulation of the Minister of Environment from 22 October 2014 on the classification of surface water bodies and environmental quality standards for priority substances (OJ 2014 pos. 1482), samples of water taken from Obrzyca classify this part of river to II class of quality. According to the Regulation of the Minister of Environment of 27 November 2002 on the requirements to be met by surface water used for public supply of water intended for human consumption (OJ 2002 No. 204, item. 1728), Obrzyca’s water belong to A3 category of water taken to consume by people.

A small scale Pressure Retarded Osmosis power plant: dynamics of the brackish effluent discharge along the coast

The feasibility of a small scale Pressure Retarded Osmosis (PRO) plant located along the eastern coast of Sicily (Italy) is assessed by considering fresh water intake from a river and salt water intake from the sea. Firstly, PRO design methods are applied in order to estimate potential power production in terms of both the availability of water resources and of local salinity gradients. Secondly, the discharge dynamics of the brackish plant effluent in the coastal waters is investigated using an hydrodynamic model, taking into account wave - current interaction close to the river mouth. The results of the numerical simulations allow to identify the area affected by the brackish discharge, as a function of the nearshore wave climate conditions. Results show that the plume propagation is mainly controlled by the wave direction, whereas significant wave height and peak wave period have a minor influence. Plume hydrodynamics analysis is useful in optimizing the layout of the PRO plant in terms of the placement of the sea water intake and the effluent discharge, both of which should be properly located outside the surf-zone. Plume hydrodynamics analysis is also important for the evaluation of PRO plant impacts on the coastal saline concentration which may affect the local ecosystems.

WORKS WITH A MINIMUM ENVIRONMENTAL IMPACT IN RIVERBEDS

Various interventions need to be done in riverbeds for achieving certain goals (recreational, economic, flood prevention). However, they should have a low impact on river environments. This paper analyses the effects of a rise in the upstream water levels as an indicator of the impacts magnitude. We found that such an intervention can generate low impacts if it does no result in arise of the water levels. The study was carried out considering two rivers in the North East of Romania: Siret and Bahlui. The conditions in which various interventions can have low impacts were identified by analyzing two possible situations: a river water intake and a discharge sill with flap gate.

Experimental Study on the Characteristics of Flowrate for the Intake System using the Filter Block

The river water intake system composed of the filter block, without installation of weirs in a channel, was proposed. To apply it to rivers, analysis of hydraulic characteristics is needed. In this study, the hydraulic experiment on the characteristics of flowrate passing through the river water intake system was carried out. The filter block was produced using riprap and stainless steel bead at the channel bottom. The experiment was carried out under various flow conditions and the flowrate passing through the intake system was measured. As the water depth approaching the intake system became deeper, the flowrate diverting to the intake system increased. As the Froude number increased, the flowrate diverting to the intake system decreased. The same trend was shown regardless of the characteristics of a filter block in the intake system. A constant discharge coefficient was shown regardless of the Froude number but it changed according to the size of a riprap and a stainless steel bead in the filter block. It was found that the discharge coefficient increases with the 0.6 power of the material size.

Correlation of CYP1A1 and GSTM1 gene polymorphisms and environmental factors to familial aggregation of esophageal cancer among the Kazakh ethnic group in Xinjiang.

This study aimed to investigate the correlation of CYP1A1 and GSTM1 gene polymorphisms and environmental factors to familial aggregation of esophageal cancer (EC) among the Kazakh ethnic group in Xinjiang. CYP1A1 and GSTM1 gene polymorphisms were detected using peripheral blood from 86 subjects belonging to families with EC and 82 control subjects. Additionally, a questionnaire survey was conducted to ascertain environmental risk factors. Combined effects of CYP1A1 and GSTM1 gene polymorphisms and environmental factors in familial aggregation of EC were evaluated. Distribution frequencies of CYP1A1 MspI and GSTM1 genotypes between EC and control families showed significant differences (P = 0.002, P = 0.001). Contribution of interaction between CYP1A1 MspI mutant and GSTM1 deletion polymorphisms to familial aggregation of EC was significant, with OR = 3.571 (95%CI = 1.738-3.346). Logistic multivariate analysis indicated that familial aggregation of EC is correlated with 3 factors: drinking water, intake of fresh vegetables and fruits, and CYP1A1 MspI polymorphism (P = 0.005, P = 0.013, and P = 0.001). Sufficient intake of fresh vegetables and fruits (OR = 0.278, 95%CI = 0.137-0.551) protected against familial aggregation of EC, while drinking water (OR = 3.468, 95%CI = 1.562-6.551) and CYP1A1 MspI polymorphism (OR = 2.732, 95%CI = 1.741-3.886) were the risk factors. In conclusion, CYP1A1 and GSTM1 gene polymorphisms affect familial aggregation of EC among the Kazakh ethnic group in Xinjiang. River water intake and CYP1A1 MspI polymorphism were risk factors that likely contributed to high incidence of EC among families.

Mineralization of atrazine in the river water intake and sediments of a constructed flow-through wetland

The purpose of this study was to assess the role of anaerobic electron acceptors in the biomineralization of atrazine in an established constructed wetland receiving seasonal fluxes of atrazine runoff from an agricultural watershed. The Olentangy River wetland receives river water with a hydraulic residence of about 36h depending on hydrological conditions. Both sediment samples and suspended solids in the water were of interest in this study. Surface water was collected from the Olentangy River by grab sampling. Samples of sediment top sections were taken from the inlet, middle section, and outlet and combined to a composite for laboratory experiments. Atrazine mineralization in water and sediment samples was based on 14CO2 release from [U-ring-14C]-atrazine in biometer enclosures. The half-lives of atrazine mineralization by suspended solids in water ranged from 10 months to 5 years depending on incubation conditions. Sediment samples from the wetland showed considerable variation in the extent of mineralization, shortest half-life of about 7 days and the longest of about 6–7 weeks with or without an anaerobic electron acceptor. The results indicate that trace levels of atrazine entering wetland will likely persist for extended periods, often exceeding the hydrologic residence time of the wetland.

통계분석을 이용한 낙동강유역의 수질변화 특성 조사

본 연구에서는 시간에 따른 수질 변화를 파악하고 원인에 따른 경향을 분석함으로써 적절한 관리대책을 수립하는 것이 필요하다고 생각되어 이 같은 연구를 하게 되었다. 현재 수질오염이 심각한 낙동강 수계를 대상으로 2006~2010년까지 수질변화를 분석하였다. 수계의 803개, 국가하천 13개소, 지방1급 하천은 10개소, 하천에 합류하는 하천은 31개 지점에서 측정한 수은, BOD(Biological Oxygen Demand), TN(Total Nitrogen)과 TP(Total Phosphorus) 등의 월평균 자료결과를 바탕으로 하여 통계적 분석(상관분석, 회귀분석, 분산분석, 시계열분석)을 통한 낙동강 유역의 인근 지역의 계절별로 수질항목을 확인하였으며, 평가지표에 따른 변화를 측정하고자 하였다. 유역의 지질 및 지형의 영향이 주로 작용하는데 지역의 기후조건, 식생, 지형, 토양, 비포화대 매질의 영향을 받기 때문에 여러가지의 변수를 가지고 유출했으며, 이는 방류량의 결정문제, 호소의 부영양화 문제 등이 제기될 수 있겠으며, 좋은 개선방안을 만들어보려고 한다. 따라서 낙동강의 강우기 유량을 증대하는 대책이 병행되는 것이 바람직하며, 물 관리 대책에는 하천유지용수 확보를 구성을 해야하며, 수로 건설사업 완료를 지속적인 관찰이 필요하다. 그러나 지류에는 물이 흐르지 않는 시기가 발생하는 이유는 자연 상태에서 흘러야 하는 하천수 및 공업용수와 농업용수로 취수했기 때문이다. 따라서 이모든 것을 관찰 및 구성을 하기 위해서는 지속적인 연구가 필요로 하며, 다음과 같은 연구의 목적을 두고 연구조사 하였다. In this study, we assess changes in water quality trends over time based on certain control measurements in order to identify and analyze the cause of the trend in water quality. The current water pollution in the Nakdong River was analyzed, as it suggests that the significant changes in water quality have occurred in between 2006 and 2010. Based on monthly average data, we have examined for trends of the Nakdong River watershed in water temperature, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Nitrogen (TN), and Total Phosphorus (TP). Moreover, we have investigated seasonal variation of water quality of sites within the Nakdong River Basin by implementing further analyses such as, Correlation Coefficient, Regression Analysis, Hierarchical Clustering Method, and Time Series Analysis on SPSS. Geology and topography of the watershed, controlled by various conditions such as, climate, vegetation, topography, soil, and rain medium, have been affected by the non-homogeneity. Our study suggests that such variables could possibly cause eutrophication problems in the river. One possible way to overcome this particular problem is to lay up a ship on the river by increasing the nasal flow measurement of the Nakdong River during rainy season. Moreover, the water management requires arranging the measurement of the flow in order to secure the river while the numerous construction projects need to be continuously observed. However, the water is not flowing tributary of the reason for the timing to be flowing in a natural state of river water and industrial water intake because agriculture. Therefore, ongoing research is needed in addition to configuration of all observations.