scholarly journals Physicochemical and Bacteriological Characterization of Industrial Wastewater Being Discharged to Surface Water Bodies: Significant Threat to Environmental Pollution and Human Health

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Muhammad Tariq ◽  
Alia Anayat ◽  
Muhammad Waseem ◽  
Muhammad Hidayat Rasool ◽  
Muhammad Asif Zahoor ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Environmental Pollution ◽  
Human Health ◽  
Industrial Wastewater ◽  
Driving Forces ◽  
Climatic Factors ◽  
Research Work ◽  
Living Standard ◽  
Untreated Wastewater ◽  
Wastewater Samples

In developing countries, various sociodemographic and climatic factors such as urbanization, industrialization, and improved living standard, and water and energy demands will all characterize wastewater’s future. Increasing population and water shortage are the main driving forces for the reuse of untreated wastewater for irrigation and other uses in many poor countries, posing a significant threat to global food security. Although wastewater contains essential nutrients required for plant growth, it also contains toxic heavy metals and pathogens that pose a significant threat to the environment and human health. Present research work was carried out to study important physicochemical and microbiological parameters of industrial wastewater collected from various discharged points at different locations of Kala Shah Kaku (KSK) city, Pakistan. Physicochemical parameters such as pH, temperature, sodium, calcium, magnesium, bicarbonates, sodium adsorption ratio, chlorides, and heavy metals such as nickel, cadmium, and iron of all industrial wastewater samples were within the standard limits. However, certain water’s quality parameters such as TSS, BOD, COD, residual sodium carbonate, heavy metals such as chromium, and total suspended solids of all samples were exceeding the maximum allowable limits listed by Pakistani Standards. Carbonates, manganese, and cobalt were not detected in any of the wastewater samples. Total viable count and total coliform counts were higher in all samples describing low levels of sanitation. Contamination of fecal coliform and Escherichia coli was observed in about 50% of the studied wastewater samples. The overall results focus on the discharge of highly polluted wastewater in and around KSK city. Indirectly it creates significant threats to environmental pollution and human health. Continuous monitoring of physicochemical and microbial indicators of effluent’s quality for its reuse for irrigation purpose is proposed to safeguard the public health and environment.

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.

Adsorption potential of nanocomposites for the removal of toxins in healthcare

2020 ◽  
Vol 16 ◽  
Author(s):  
Pravin Shende ◽  
Nikita P. Devlekar
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Industrial Wastewater ◽  
Biological Systems ◽  
High Surface ◽  
Volume Ratio ◽  
Cost Effective ◽  
Isotherm Models ◽  
Potential Applications ◽  
Enhanced Adsorption

: Industrial wastewater is one of the by-products of several industries and it consists of water that requires treatment before it is discharged in water bodies. The presence of toxins in wastewater such as dyes and heavy metals is hazardous to human health and requires effective removal to reduce environmental pollution. Industrial wastewater treatment has become a global concern in healthcare and environment leading to the development of various technologies for the removal of toxins from wastewater. Various processes and technologies such as advanced oxidation processes, adsorption and membrane technology show potential in treating industrial wastewater. Another source of toxins in the form of pesticides is harmful to human health leading to severe health problems. Nanocomposites show potential as efficient adsorbents for the removal of toxins owing to the enhanced adsorption capacity, promising physicochemical properties and high surface-to-volume ratio due to nanoscale dimension. Nanocomposites are cost effective and efficient nanoadsorbents for the removal of various toxins. This review focuses on the potential applications of nanocomposites as adsorbents for the removal of toxins like dyes, heavy metals and pesticides from wastewater and biological systems. The use of nanocomposites as efficient adsorbents in the removal of toxins, various isotherm models and adsorption kinetics applied in the mechanism of adsorption are also discussed in the article. In the near future, nanocomposites may provide a simple, economical and efficient adsorption system for the removal of toxins from wastewater and biological systems.

scholarly journals HEALTH RISK ASSESSMENT OF HEAVY METALS DUE TO UNTREATED WASTEWATER IRRIGATED VEGETABLES

2020 ◽  
Vol 4 (1) ◽  
pp. 25-33
Author(s):  
Ayesha Nawaz ◽  
Sana Basheer ◽  
Awais Masood Ahmed ◽  
Haroon Rashid ◽  
Abdul Nasir ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Human Beings ◽  
Chemical Parameters ◽  
Untreated Wastewater ◽  
Safe Limit ◽  
Wastewater Samples ◽  
Physical And Chemical

The present research study was conducted on Health risk assessment of heavy metals due to untreated wastewater irrigated vegetables in Faisalabad city. Samples of soil, groundwater, wastewater and vegetables were collected from different regions of the city where wastewater irrigation was in practice. The ground water and wastewater samples were analyzed for all the basic physical and chemical parameters and heavy metals like (Nickel, Lead, Cadmium, Zinc, Copper and Chromium). Most of the chemical parameters where in access to standard limits of USEPA. It was found that the majority the heavy metal concentrations in soil are deteriorated because of wastewater. Analysis of heavy metals in Vegetables that their concentrations in vegetables were in the order of Zn>Ni>Cr>Cu>Pb>Cd. The concentration of heavy metals like (Zn, Ni, Cr and Cu) in vegetables were above the safe limit. While TF was lower for all metals except Cd. HRI was maximum for Pb and Ni in all vegetables. HQ was maximum for Ni, Pb and Cd. The vegetables tested were not safe for human use, especially those directly consumed by human beings

scholarly journals Impact of Industrial Wastewater Irrigation on Heavy Metal Deposition in Farm Soils of Bhaluka Area, Bangladesh

2020 ◽  
pp. 19-31 ◽  
Author(s):  
Faisal Islam ◽  
H. M. Zakir ◽  
A. Rahman ◽  
Shaila Sharmin
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soil Quality ◽  
Contaminated Soils ◽  
Industrial Wastewater ◽  
Industrial Area ◽  
Pollution Level ◽  
Study Results ◽  
Wastewater Samples ◽  
Farm Soils

The study was conducted to determine heavy metal contents in industrial wastewater and contaminated soils of Bhaluka, Mymensingh and to assess their pollution level. A total of 9 industrial wastewater and 12 contaminated farm soil samples were collected directly from the farmers’ fields of Bhaluka area and analysed for this study. Considering EC, salinity and TDS, 56 to 89% wastewater samples were found problematic for long term irrigation. The concentration of CO3, HCO3 and Cl in wastewater ranged from 0.20-1.60, 2.0-11.2 and 1.30-4.79 me L-1, respectively and the content of Ca, Mg, Na and K in wastewater ranged from 16.03-52.10, 4.86-21.87, 101.98-678.90 and 5.59-48.63 mg L-1, respectively. The study results revealed that all wastewater samples were found unsuitable for irrigation in respect of CO3, HCO3 and K. Among the heavy metals studied, Pb, Cd and Fe concentrations in all wastewater samples and Mn content in 5 samples were found above than the acceptable limit for irrigation. The concentration of Zn, Cr, Cu, Pb, Ni, Cd, Mn and Fe in wastewater irrigated soils of Bhaluka industrial area ranged from 50.48 to 448.56, 47.22 to 83.65, 19.13 to 328.23, 42.37 to 77.96, 22.93 to 43.86, 0.70 to 1.40, 161.5 to 341.7 and 38105 to 65399 μg g-1, respectively. Considering geoaccumulation index, the Igeo values for Pb and Cd for all locations of the study area exhibited positive values (0.495< Igeo <1.624), that means Igeo class: 1-2, indicate moderately polluted soil quality. On the other hand, as regards to enrichment factor (EFc), 9 locations for Pb, 5 for Cd, 1 for Zn and 1 for Cu had EFc values > 5.0, indicate contaminated soil quality. The study concluded that industrial wastewater used for irrigation was directly linked with the heavy metals deposition in the farm soils.

scholarly journals ECOLOGICAL EFFECTIVE TREATMENT OF INDUSTRIAL WASTEWATER FORMED IN THE OIL-PRODUCING INDUSTRY BY COAGULATION METHOD

2021 ◽  
pp. 63-66
Author(s):  
S.R. Hajiyeva ◽  
◽  
N.T. Shamilov ◽  
G.I. Bayramov ◽  
N.M. Rakida ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Research Work ◽  
Environmental Safety ◽  
Oil In Water ◽  
Suspended Substances ◽  
Deep Purification ◽  
Oil Emulsions ◽  
Wastewater Samples ◽  
Environmental Importance ◽  
Purification Of Water

Research work has been carried out on deep purification of water samples taken from industrial wastewater formed in the oil-producing industry containing hydrophilic and hydrophobic (oil-in-water and water-in-oil) emulsions from oil and organic suspended substances. Using the coagulation method developed by us, industrial wastewater samples were purified up to 100% from oil and suspended substances under optimal conditions. It has been substantiated that this method is of great economic and environmental importance. The applied coagulant and extractant meet the requirements of environmental safety

scholarly journals Variaciones de los niveles de mercurio y zinc en agua y sedimentos de la subcuenca del río Carrizal, Manabí

2019 ◽  
Vol 4 (1) ◽  
pp. 25
Author(s):  
Ana María Aveiga Ortiz ◽  
Patricio Noles ◽  
Patricio Noles ◽  
Julio Loureiro ◽  
Fabian Peñarrieta ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Environmental Pollution ◽  
Human Health ◽  
Aquatic Life ◽  
Natural Sources ◽  
Water And Sediment ◽  
Sampling Points ◽  
International Regulations ◽  
Index Terms ◽  
Del Rio

Excessive concentrations of mercury and zinc in natural sources are a risk to human health and to the development of adequate aquatic life. In the present study, the concentrations of Hg and Zn in samples of water and sediment from the Carrizal River (Cantón Bolívar, Manabí) were determined in two periods (August and October). In addition, 5 sampling points were characterized at La Esperanza reservoir, 7 at Carrizal river micro-basin, and 9 at the river sub-basin, covering an area of 51 km. The concentrations of Hg and Zn in the sediments were significantly higher than the concentrations obtained in the water. The contents of Hg in water and sediments of Carrizal River exceeded the safety limits established by national and international regulations; while the Zn concentrations obtained are considered to be a risk for aquatic life. Index Terms—bioaccumulation, adsorption, environmental pollution, heavy metals

scholarly journals Assessment of Environmental Pollution and Human Exposure to Pesticides by Wastewater Analysis in a Seven-Year Study in Athens, Greece

Toxics ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 260
Author(s):  
Nikolaos I. Rousis ◽  
Maria Denardou ◽  
Nikiforos Alygizakis ◽  
Aikaterini Galani ◽  
Anna A. Bletsou ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Human Exposure ◽  
Screening Method ◽  
Transformation Products ◽  
Wastewater Analysis ◽  
Insect Repellents ◽  
Untreated Wastewater ◽  
Flight Mass Spectrometry ◽  
Pesticide Transformation Products ◽  
Wastewater Samples

Pesticides have been used in large amounts around the world for decades and are responsible for environmental pollution and various adverse effects on human health. Analysis of untreated wastewater can deliver useful information on pesticides’ use in a particular area and allow the assessment of human exposure to certain substances. A wide-scope screening method, based on liquid chromatography coupled to quadrupole-time-of-flight mass spectrometry, was applied, using both target and suspect screening methodologies. Daily composite influent wastewater samples were collected for seven or eight consecutive days in Athens between 2014 and 2020 and analyzed for 756 pesticides, their environmental transformation products and their human metabolites. Forty pesticides were quantified at mean concentrations up to 4.9 µg/L (tralkoxydim). The most abundant class was fungicides followed by herbicides, insect repellents, insecticides and plant growth regulators. In addition, pesticide transformation products and/or metabolites were detected with high frequency, indicating that research should be focused on them. Human exposure was evaluated using the wastewater-based epidemiology (WBE) approach and 3-ethyl-carbamoyl benzoic acid and cis-1,2,3,6-tetrahydrophthalimide were proposed as potential WBE biomarkers. Wastewater analysis revealed the presence of unapproved pesticides and indicated that there is an urgent need to include more transformation products in target databases.

A Combination of Dracaena fragrans and Trichoderma fungus in Removing Heavy Metals Contamination from Agricultural Soils

2021 ◽  
Vol 873 ◽  
pp. 19-24
Author(s):  
Huu Quang Le ◽  
Dung Duc Tran ◽  
Yi Ching Chen ◽  
Au Hai Nguyen ◽  
Lan Huong Nguyen
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Environmental Pollution ◽  
Human Health ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Agricultural Soils ◽  
Polluted Soils ◽  
Heavy Metals Contamination ◽  
Technological Methods

Environmental pollution due to heavy metals is a matter of great concern to many scientists and managers worldwide. The threats to human health from heavy metals are primarily associated with the exposure in agriculture production activities. However, a considerable number of technological methods have been used to remove the heavy metals from polluted soils. One of the simplest measures to effectively remove heavy metal contamination is to use both plants and microorganisms, which have been considered "natural materials" or "Bio-Materials" to treat pollutants. This study was conducted on assessing the ability of Trichoderma to absorb heavy metals into the plant. Phytoremediation experiments with Trichoderma were used to remove heavy metals in the soil. Our findings showed that Dracaena Fragrans plants are capable of absorbing heavy metals Cu, Pb, and Zn in soil contaminated with experimental heavy metals.

Comparative Study Regarding Heavy Metals Content in Air from Targu Jiu and Rovinari

2018 ◽  
Vol 68 (12) ◽  
pp. 2839-2844
Author(s):  
Camelia Capatina ◽  
Daniela Cirtin
Keyword(s):  
Heavy Metals ◽  
Comparative Analysis ◽  
Environmental Pollution ◽  
Human Development ◽  
Human Health ◽  
International Organizations ◽  
Environment Pollution ◽  
Negative Effects ◽  
Limit Values ◽  
Complex Subject

Environmental pollution represents an important and complex subject with a huge concern for both scientists in different fields, but also for the governments, national and international organizations. Besides the indisputable advantages of the industry for the human development, it has a big contribution to environmental pollution with negative effects to the human health. Heavy metals in the environment have negative effects to the ecosystems and to human health. Consequently, it is necessary to determine the level of heavy metals in the environment to take measures to reduce the environment pollution. According to this issue, the main purpose of these research studies is to perform a comparative analysis of heavy metals content in Targu-Jiu and Rovinari area, those being ones of the most pollution affected areas in Jiu county. The results obtained show that the heavy metals contents in PM10 in the air in these areas chosen for the study are below the permitted limit values for the period 2015-2016.

Assessment of Rapid Method for Determining Heavy Metals Concentration in Industrial Wastewater

1992 ◽  
Vol 25 (11) ◽  
pp. 189-196 ◽  
Author(s):  
P. C. Chiang ◽  
E. E. Chang
Keyword(s):  
Heavy Metals ◽  
Rapid Method ◽  
Food Processing ◽  
Industrial Wastewater ◽  
Comprehensive Evaluation ◽  
Research Work ◽  
Statistical Techniques ◽  
Interference Detection ◽  
Cost Analyses ◽  
Paired T Test

The objective of this research work is to evaluate the applicability of selecting the rapid method to replace the conventional standard method for determining heavy metals concentration in the real samples which were obtained from the textile, electroplating, leather, and food processing industries. Statistical techniques including paired t-test, factor analysis and regression analysis were introduced to compare the analytical results from the above two methods. A comprehensive evaluation of these two methods based on the principle, accuracy, precision, linear range, interference, detection limit, ease of operation, and cost analyses is given.

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