scholarly journals Impact On Vegetables Irrigated With Municipal and Industrial Wastewater From Korangi Drain Near IoBM, Karachi

2021 ◽  
Author(s):  
Nida Rabab ◽  
Abdulrauf Farooqi ◽  
Shan e Hyder Soomro
Keyword(s):  
Heavy Metals ◽  
Fresh Water ◽  
Maximum Concentration ◽  
Industrial Wastewater ◽  
Water Bodies ◽  
Nickel Concentration ◽  
Marine Life ◽  
Safe Limits ◽  
The Impact ◽  
Bacteriological Contamination

Abstract The present study was conducted to assess the Impact on Vegetables Irrigated with Municipal and Industrial wastewater from Korangi Drain near IoBM, Karachi. Some vegetables are grown using sewage and industrial wastewater laden with alarmingly high levels of heavy metals and bacteriological contamination. Maximum concentration of lead was found in spinach 8.20 mg/l as against safe limits of 0.01 mg/l and maximum Nickel concentration was found in banana 3.114 mg/l as against 0.02mg/l whereas all vegetables were invariably bacteriologically contaminated much beyond safe limits. Appropriate legislations in Sindh and competent manpower for rigorous monitoring to gage the harmful impact on vegetables grown with untreated municipal and industrial wastewater to effectively combat the problems of growing vegetables. The emptying of untreated municipal and industrial wastewater through Korangi Drain in fresh water bodies into Karachi cost should be banned to save the coast becoming hypoxic causing irreparable loss to marine life.

Coupled CFD-DEM modelling to assess settlement velocity and drag coefficient of microplastics

2020 ◽  
Author(s):  
Robin Jérémy ◽  
Latessa Pablo Gaston ◽  
Manousos Valyrakis
Keyword(s):  
Fluid Dynamics ◽  
Fresh Water ◽  
Turbulent Flows ◽  
Transport Processes ◽  
Water Bodies ◽  
World Health ◽  
Drinking Water Source ◽  
Drag Coefficients ◽  
Wide Range ◽  
The Impact

<p>Several studies have documented high concentration of microplastics on fresh water sources, oceans and even on treated tap and bottled water. Understanding the physics behind these particles in the water environment has become one of the key research needs identified in the World Health Organization Report (2019). In order to develop novel and efficient methodologies for sampling, treating and removing microplastics from water bodies, a thorough understanding of the sources and transportation and storage mechanisms of these particles is required.</p><p>In this article, the settlement velocity affecting the transport [1, 2] of low-density particles (1<r<1.4 g.cm<sup>-3</sup>) and drag coefficients is assessed through numerical modelling. The effects of fluid and particle relative densities and media temperatures are analysed, as well as the impact of the particle size and shapes [3].</p><p>Computational Fluid Dynamics (CFD) techniques are applied to solve the fluid dynamics while the Discrete Element Method (DEM) approach is used to model the particle trajectories [4]. These two modules are coupled under the CFDEM module, which transmits the forces from the fluid into the particle and from the particle into the surrounding water through the Fictitious Boundary Method approach.</p><p>Several tests are run under the same particle conditions in order to estimate the influence of turbulent flows on these experiments. The influence from different particle densities and diameters on settling velocities and drag coefficients is assessed. The numerical results are validated against a wide range of experimental data [2, 3] and compared against empirical predictions.</p><p>There is an urge for gaining a better understanding of the sources and transport of microplastics through fresh water bodies. In this sense, sampling and quantification of microplastics in a drinking water source is key to evaluate the environment status and to design the most appropriate techniques to reduce or remove the microplastics from the aquatic environments. The implementation of coupled CFD-DEM models provides a very powerful tool for the understanding and prediction of the transport processes and the accumulation of microplastics along the fluvial vectors.</p><p> </p><p>References</p><p>[1] Valyrakis M., Diplas P. and Dancey C.L. 2013. Entrainment of coarse particles in turbulent flows: An energy approach. J. Geophys. Res. Earth Surf., Vol. 118, No. 1., pp 42- 53, doi:340210.1029/2012JF002354.</p><p>[2] Valyrakis, M., Farhadi, H. 2017. Investigating coarse sediment particles transport using PTV and “smart-pebbles” instrumented with inertial sensors, EGU General Assembly 2017, Vienna, Austria, 23-28 April 2017, id. 9980.</p><p>[3] Valyrakis, M., J. Kh. Al-Hinai, D. Liu (2018), Transport of floating plastics along a channel with a vegetated riverbank, 12th International Symposium on Ecohydraulics, Tokyo, Japan, August 19-24, 2018, a11_2705647.</p><p>[4] Valyrakis M., P. Diplas, C.L. Dancey, and A.O. Celik. 2008. Investigation of evolution of gravel river bed microforms using a simplified Discrete Particle Model, International Conference on Fluvial Hydraulics River Flow 2008, Ismir, Turkey, 03-05 September 2008, 10p.</p>

scholarly journals Heavy Metals’ Concentration in Textile and Garments Industries’ Wastewater of Bhaluka Industrial Area, Mymensingh, Bangladesh

2015 ◽  
Vol 10 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Biddut Sarker ◽  
Md. Abdul Baten ◽  
Md. Eqram-Ul Haque ◽  
Alok Das ◽  
Ahmed Hossain ◽  
...  
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Industrial Waste ◽  
Industrial Wastewater ◽  
Industrial Area ◽  
Industrial Waste Water ◽  
Safe Limits ◽  
Textile Industries ◽  
Wastewater Samples ◽  
Recommended Level

An investigation was made to ascertain heavy metals concentration in effluent samples collected from textile industries located at Bhaluka industrial area, Mymensingh, Bangladesh during August to November, 2013. Atomic absorption spectrometer (AAS) was used to evaluate the concentration of Zinc (Zn), Copper (Cu), Nickel (Ni), Cadmium (Cd), Chromium (Cr) and Lead (Pb) in the samples. The study revealed that heavy metals were present in variable amounts, where the concentrations of Cu (0.0405 ppm) and Pb (0.0003 ppm) were found lower than recommended level for industrial waste water. Among the present trace metals, the highest concentration (0.2-1.0 ppm) was found in Zn. Although the concentration is suitable for irrigation, it is unsafe for aquaculture. Besides, all of the wastewater samples possessed no Cr, Cd and Ni, which comprised less of the minimum acceptance level, indicating no possibility of contamination. However, comparing findings of this study with the safe limits for industrial wastewater, it can be concluded that the waste water of the study area except some sampling sites can be used for irrigation and aquaculture.

scholarly journals Modeling Management and Climate Change Impacts on Water Pollution by Heavy Metals in the Nizhnekamskoe Reservoir Watershed

Water ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3214
Author(s):  
Yury Motovilov ◽  
Tatiana Fashchevskaya
Keyword(s):  
Heavy Metals ◽  
Climate Change Impacts ◽  
Southern Urals ◽  
River Pollution ◽  
Large River ◽  
Water Bodies ◽  
Economic Activities ◽  
Spatial And Temporal Patterns ◽  
The Southern Urals ◽  
The Impact

The semi-distributed physically based ECOMAG-HM model was applied to simulate the cycling of the heavy metals (HM) Cu, Zn, and Mn, and to identify spatial and temporal patterns of heavy metal pollution in water bodies of a large river catchment of the Nizhnekamskoe reservoir (NKR) in Russia. The main river of the catchment is the Belaya River, one of the most polluted rivers in the Southern Urals. The model was tested against long-term data on hydrological and hydrochemical monitoring of water bodies. It is shown that the pollution of rivers is formed mainly due to diffuse wash-off of metals into rivers from the soil-ground layer. Numerical experiments to assess the impact of water economic activities on river pollution were carried out by modeling scenarios of changes in the amount of metal discharged with wastewater, a disaster with a salvo discharge of pollutants, and the exclusion of anthropogenic impact on the catchment to assess self-purification of the basin. Modeling of chemical runoff in accordance with the delta-change climatic scenario showed that significant changes in water quality characteristics should not be expected in the near future up to 2050.

The Impacts of Industrial Effluent Discharge on Agricultural Fields

2018 ◽  
Vol 9 (06) ◽  
pp. 20240-20245
Author(s):  
Amusat Mudasiru Abiodun ◽  
Taiwo Adewale Mathew ◽  
Ogundele Olusegun Michael ◽  
Ademiluyi Yinka Segun
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Industrial Effluent ◽  
Descriptive Statistics ◽  
Agricultural Fields ◽  
Microsoft Excel ◽  
Standard Procedures ◽  
Safe Limits ◽  
Effluent Discharge ◽  
The Impact

The aim of this study is to assess the impact of agricultural industrial effluent discharge on agricultural fields. Soil and crops samples from industrial effluent irrigated agricultural fields were collected from 5 locations in Ilorin, Kwara State between March and August, 2017. Soil and crop samples were analysed for heavy metals (Zinc, Copper, Iron, Lead, Manganese, Cadmium, and Chromium) using the standard procedures. Data collected were analysed for simple descriptive statistics using the Microsoft Excel Package. Results showed Zn level concentration in agricultural produces from in Farms 3 - 5 were found to be in the range of 0.08-0.3 mgkg-1 `falling within the WHO/FAO safe limits of 0.60 mgkg-1. Crop samples collected from Farms 1 & 2 showed the Zn levels higher than the WHO/FAO permissible limit. The concentrations of Cu, Zn, Fe and Cd in agricultural produces were found within the permissible limits of the WHO. The order of accumulation of heavy metals by the agricultural produces were Ewedu > Garden Egg > Flute Pumpkin > Maize > Okro. The consumption of agricultural produces study farms 1 and 2 may pose serious danger to human health. This study recommends treatment of industrial effluent before discharge into the agricultural lands.

ASSESSMENT OF AQUATIC ECOSYSTEM STATUS USING MACROPHYTE SPECIES AS KEY TOOLS INDICATOR FOR HEAVY METAL POLLUTION

2015 ◽  
Vol 77 (30) ◽  
Author(s):  
Rashidi Othman ◽  
Ruhul Izzati Shaharuddin ◽  
Zainul Mukrim Baharuddin ◽  
Khairusy Syakirin Has-Yun Hashim ◽  
Mohd Shah Irani Hasni
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Fresh Water ◽  
Plant Species ◽  
Aquatic Plants ◽  
Water Samples ◽  
Aquatic Plant ◽  
Water Bodies ◽  
Macrophyte Species ◽  
Freshwater Bodies

Aquatic plants or macrophytes are beneficial to fresh water bodies because they produce oxygen, which assists with overall fresh water bodies functioning, and provide food and shelter for aquatic living organisms. A lack of aquatic plants in a freshwater bodies system where they are expected to occur may suggest a reduced population of macro and micro fauna. In addition, the absence of macrophytes may also indicate water quality problems as a result of excessive turbidity, herbicides, or salinization. However, an over abundance of macrophytes can result from high nutrient levels and may interfere with freshwater bodies processing, recreational activities and detract from the aesthetic appeal of the system. In this study, sixteen water samples were collected from four different places (Selangor, Perak, Pahang and Kelantan) where six different macrophytes species were abundance and dominant. All the water samples were analyzed by using Atomic absorption spectroscopy (AAS) for six types of heavy metals which are iron (Fe), lead (Pb), copper (Cu), zinc (Zn), nickel (Ni) and manganese (Mn). All six different macrophytes species which are Eichhorniacrassipes, Hydrillaverticillata, Cabombafuscata, Salvinianatans, Nelumbonuciferaand Pistiastratiotesexhibiting highly significant differences (P< 0.0001) between aquatic plant species widespread, locations and the heavy metals content. This clearly demonstrates that freshwater environment with abundance of invasive macrophyte species can have an important influence and indication on the accumulation of heavy metals content. The importance of the interaction components emphasises that the changes in heavy metals composition are complex and the responses are not consistent across all aquatic plant species. Examination of the summarised data revealed that, of the 6 macrophyte species analysed at all different locations, all exhibits as potential ecological indicator for unhealthy aquatic ecosystems or as phytoindicator for heavy metal contaminants either at low or high level contamination. Therefore, macrophyte is an effective tool in responding heavy metal in low level environmental contamination that might otherwise be difficult to detect.

scholarly journals The Impact Of Some Organic And Inorganic Pollutants On Fresh Water (Rashid, River Nile), Egypt

2017 ◽  
Vol 10 (2) ◽  
pp. 2133-2145 ◽  
Author(s):  
Eman Hashem Radwan ◽  
Mennat Alllah Khaled Saber ◽  
Mohie Eldin Khaled Saber ◽  
Gehan H Fahmy
Keyword(s):  
Heavy Metals ◽  
Fresh Water ◽  
Organic Pollutants ◽  
Water Environment ◽  
River Nile ◽  
Inorganic Pollutants ◽  
The Mean ◽  
The Impact ◽  
Mean Concentration ◽  
Fresh Water Environment

Pollution of fresh water with organic pollutants and heavy metals has an impact on the environment of the River Nile in Egypt. The environment has become increasingly contaminated by inorganic and organic pollutants which accumulate in the food chain and affect the human health. The pollution of the fresh water environment by heavy metals and organic pollutants is due to the increasing action of flowing out discharge from various industries. Three heavy metals; Cu, Pb, and Zn and organic pollutants as DDT, Chlordane, dieldrin and butylene were investigated in the present study in freshwater and sediment during the year (Autumn2016-summer2017) .The investigated samples were collected from Rashid, Egypt. The present study reported that the mean concentration level of both heavy metals and organic pollutants were correlated in the sediment and in the fresh water of Rashid at p< 0.001.

scholarly journals Heavy Metal Levels in Vegetables and Soil Cultivated with Industrial Wastewater from Different Sites of Chunian and Jamber, District, Kasur

2020 ◽  
Vol 24 (2) ◽  
pp. 271-277
Author(s):  
A. Hussain ◽  
SM Bukhari ◽  
S. Andleeb ◽  
K.U. Rehman ◽  
I. Maqsood ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Sample ◽  
Atomic Absorption ◽  
Industrial Wastewater ◽  
Anthropogenic Activities ◽  
Atomic Absorption Spectrophotometer ◽  
Human Diet ◽  
Physiological Conditions ◽  
Metal Levels ◽  
Safe Limits

In human diet, vegetables play important role to maintain the physiological conditions. Due to anthropogenic activities and pollution, the food items become contaminated. The present study was performed to evaluate the level of heavy metals in the vegetables irrigated with wastewater across Chunian and Jamber, district, Kasur. Level of heavy metals from the study area like Zinc, Lead and chromium in the soil, water and vegetables was compared. The four sites of each city and 10 vegetables e.g. potato, radish, carrot, fenugreek, spinach, tomato, Onion, Turnip, Cauliflower, Pangalo were selected to conduct the experiment. The vegetables were irrigated with industrial wastewater and the concentration of heavy metals was measured by the atomic absorption spectrophotometer (AAS). We concluded that the level of heavy metals was beyond the FAO limits in irrigated water due to industrial waste. In Jamber and Chunian, the level of Zn and Pb was high and beyond the FAO safe limits in the all water sample, the level of Cr was much higher only in the water sample of one site from Jamber. The concentration of zinc was higher in soil samples as compared to lead and chromium. Zn and Pb in vegetables of study area were labeled as priority pollutants but this concentration was within the safe limits set by FAO. However, constant inspection of heavy metals is recommended to avoid accumulation in the food chain and thus avoid human health risks. Keywords: Atomic absorption spectrophotometer, Heavy metals, Industrial wastewater, Vegetables.

The impact of biometric parameters of a hydromacrophyte habitat on the structure of zooplankton communities in various types of small water bodies

2009 ◽  
Vol 38 (2) ◽  
Author(s):  
Natalia Kuczyńska-Kippen ◽  
Barbara Nagengast ◽  
Tomasz Joniak
Keyword(s):  
Water Bodies ◽  
Small Water ◽  
Biometric Parameters ◽  
Zooplankton Communities ◽  
The Impact ◽  
Small Water Bodies

The impact of biometric parameters of a hydromacrophyte habitat on the structure of zooplankton communities in various types of small water bodies

Агрономическая эффективность промышленной (голландской) технологии возделывания картофеля

2018 ◽  
Author(s):  
C. Coy ◽  
A.V. Shuravilin ◽  
O.A. Zakharova
Keyword(s):  
Heavy Metals ◽  
Regression Analysis ◽  
Positive Response ◽  
Growth Yield ◽  
Correlation And Regression Analysis ◽  
Yield And Quality ◽  
Quality Of Products ◽  
High Degree ◽  
The Impact

Приведены результаты исследований по изучению влияния промышленной технологии возделывания картофеля на развитие, урожайность и качество продукции. Выявлена положительная реакция растений на подкормку K2SO4 в период посадки. Корреляционно-регрессионный анализ урожайности и качества клубней выявил высокую степень достоверности результатов опыта. Содержание нитратов и тяжелых металлов в клубнях было ниже допустимых величин.The results of studies on the impact of industrial technology of potato cultivation on growth, yield and quality of products. There was a positive response of plants to fertilizer K2SO4 in the period of planting. Correlation and regression analysis of yield and quality of tubers revealed a high degree of reliability of the results of experience. The contents of nitrates and heavy metals in tubers was below the permissible values.

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