scholarly journals ASSESSMENT OF MALIR RIVER WATER QUALITY AND IT SUITABILITY FOR IRRIGATION PURPOSES

2020 ◽  
Vol 26 (3) ◽  
pp. 181-188
Author(s):  
MUHAMMAD SALEEM
Keyword(s):  
Water Quality ◽  
River Water ◽  
Irrigation Water ◽  
Industrial Area ◽  
River Water Quality ◽  
International Standards ◽  
Irrigation Water Quality ◽  
Allowable Limit

Malir river, which is passing through industrial area of mega city Karachi is assessed for the suitability of its water for irrigation purposes. It was found that the concentration of studied metals is a function of position and season. Most of the pollutants are within the limits provided by national and international standards however, nickel was above the allowable limit for irrigation water quality (1000 μg/L) which is probably attributed to the discharge of effluent from vegetable-ghee manufacturing factories working in the vicinity. The overall suitability of Malir river based on EC, TDS and SAR is ranked’Permissible’ for irrigation.

scholarly journals Reclaimed Wastewater Quality Assessment for Irrigation and Its Mid-Time Reuse Effects on Paddy Growth and Yield under Farmer Management

2018 ◽  
Vol 12 (1) ◽  
pp. 64-73
Author(s):  
Kami Kaboosi ◽  
Reza Esmailnezhad
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Irrigation Water ◽  
Nitrogen Concentration ◽  
International Standards ◽  
Growth And Yield ◽  
Irrigation Water Quality ◽  
Reclaimed Wastewater ◽  
Fertilizer Application Rate ◽  
Significant Difference

Introduction: Many studies have been conducted on irrigation of upland crops with reclaimed wastewater while there have been a few reports about wastewater reuse for paddies. The majority of irrigation water requirement of paddy field in Bandargaz region (Iran) during the dry season within the last 12 years is dependent on effluent of treatment plant. Accordingly, different water parameters and 12 irrigation water quality indexes and economical- environmental filed management factor (fertilizer application rate) and crop growth and yield were studied in freshwater (FW) and wastewater (WW) filelds. Explanation: Unexpectedly, wastewater and freshwater salinity was less and more than the threshold salinity of paddy (2.0 dS.m-1), respectively and due to the high concentration of chlorine, FW is not suitable for irrigation. Based on almost all of indices and standards for assessing irrigation water quality, WW was significantly better than FW. Conclusion: The average concentration of heavy metals in both FW and WW samples were in the order of Cr˂Cd˂Pb˂Ni. However, results showed that concentration of heavy metals in WW was significantly more than FW. Nevertheless, these were below maximum allowable based on international standards and guidelines. The average nitrogen concentration in the reclaimed wastewater was 11.2 mg.lit-1 that was more than the required nitrogen concentration (7 mg.lit-1). So, a dilution strategy could be adopted when reclaimed water is used. No significant difference was observed in two type farms based on plant height, spike length, and 1000-seed weight, but this factor was significantly effective on seed per spike and seed yield so that they were higher in WW irrigated farms by 12.4 and 10 percent, respectively.

scholarly journals Kualitas Air Sungai Irigasi dan Persepsi Pemanfaatannya pada Suku Jawa dan Madura

2018 ◽  
Author(s):  
Anita Dewi Moelyaningrum
Keyword(s):  
Water Quality ◽  
River Water ◽  
Irrigation Water ◽  
Significant Relationship ◽  
P Value ◽  
Action Perception ◽  
Irrigation Water Quality ◽  
Cross Sectional ◽  
Water Utilization ◽  
Significant Difference

Artikel ini telah terbit pada Jurnal Spirulina. Jurnal Penelitian kesehatan dan Farmasi. Vol. 8 No. 1 Januari 2013. ISSN 1907-2171 Pusat Penelitian Kesehatan. Lembaga Penelitian Universitas Jember. Perception of river water utilization is a process of stimulus acceptance and management that will form an attitude and action. Perception can be influenced by a person`s knowledge, characteristics and cultural. River water utilization incompatible with their use can reduce the quality. This research aims to analyze the characteristics and knowledge of irrigation water quality on the perception of utilization of river water. This research is analytical research which is based on time using cross sectional approach. The number of the sample is 81 sample which is taken based on proportional cluster random sampling techniques. Data collecting in this research using questionnaire. Data that obtain was analyzed using spearman rank correlation coefficient test with α= 0,05. The results showed that there was no significant relationship between the respondent`s age with the respondents perception about the river water utilization with the p value = 0,163; there is a significant relationship between knowledge of irrigation water quality of the respondents with p-value=0,000. There is a significant difference between the perception of Javanese people with Madurese people with a p value=0,000. The water of the river can`t use the daily activation because it contains total coliform 16000 JPT/100ml. Based on these result, it is expected to all figure people to guiding the people the good utilization of river water.

scholarly journals Effect of Irrigation Water Quality and Spraying with Tocopherol on Na, K, K+/Na+ and Cl- and Chemical Components of Okra (Abelmoschus esculentus L. Moench)

2019 ◽  
Vol 32 ◽  
pp. 291-301
Author(s):  
Faris I. Obead ◽  
Awatif N. Jerry
Keyword(s):  
Water Quality ◽  
Abscisic Acid ◽  
River Water ◽  
Irrigation Water ◽  
Tap Water ◽  
Chlorophyll Concentration ◽  
Growth And Yield ◽  
Chemical Components ◽  
Soluble Carbohydrate ◽  
Irrigation Water Quality

The experiment was carried out in a private orchard at Shat-Al- Arab District, Basrah Province during the summer seasons of 2011and 2012 in order to study the effect of irrigation water quality and spraying with Tocopherol on growth and yield of okra plants tolerance to salinity resulted from irrigation by salinity water and its effect on the leaves of chemical parameters. Treatments included three sources of water (i.e. tap water, tap water + river water 1:1 and river water) and spraying plants with Tocopherol at four concentrations 0, 50, 100 and150mg. l-1). Treatments of this experiment were distributed in Split Plot Design with three replicates, which were the main Plots represented water sources, spraying with tocopherol represented sub-plots. Means were compared according to L.S.D. Test at significant level of 0.05. Result could be summarized as follows: Plants irrigated with tap water had a significantly higher parameters (N, K, K+/Na+ ratio), carbohydrate, leaves chlorophyll concentration, abscisic acid contents in leaves for both seasons,.Foliar application with Tocopherol at 150 mg.l-1 caused an increase in N,K, K+/Na+, total soluble carbohydrate and chlorophyll contents in leaves while resulted decrease in proline and abscisic acid contents in leaves.The interactions between the studied factors were significant in all studied parameters for both seasons.

Klamath River Water Quality and Acoustic Doppler Current Profiler Data from Link River Dam to Keno Dam, 2007

2008 ◽  
Author(s):  
Annett B. Sullivan ◽  
Michael L. Deas ◽  
Jessica Asbill ◽  
Julie D. Kirshtein ◽  
Kenna D. Butler ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Acoustic Doppler Current Profiler ◽  
River Water Quality ◽  
Klamath River ◽  
Current Profiler ◽  
Profiler Data

MODELING THE ORGANIC REMOVAL AND OXYGEN CONSUMPTION BY BIOFILMS IN AN OPEN-CHANNEL FLOW

1994 ◽  
Vol 30 (2) ◽  
pp. 53-61 ◽  
Author(s):  
Shiyu Li ◽  
Guang Hao Chen
Keyword(s):  
Water Quality ◽  
Oxygen Consumption ◽  
River Water ◽  
Channel Flow ◽  
Diffusion Layer ◽  
Open Channel ◽  
Open Channel Flow ◽  
River Water Quality ◽  
Monod Kinetics ◽  
Organic Removal

A mathematical model is proposed to predict the removal of dissolved organic substances and the consumption of dissolved oxygen by attached biofilms in an open-channel flow. The model combines the biofilm equations with the conventional Streeter–Phelps type equations of river water quality by considering the mass transfer of organics and oxygen in the river water through the diffusion layer into the biofilm. It is assumed that the diffusion and reaction within the biofilm are of steady-state, and follow Monod kinetics. The model is solved numerically with a trial-and-error method. The simulation results of the model for an ideal case of river flow and biofilm show that the organic removal rate and oxygen consumption rate caused by the biofilm are greater than that by suspended biomass. The effects of diffusion layer thickness, flow velocity, and biofilm thickness on the change of river water quality are discussed.

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