https://research.birmingham.ac.uk/portal/files/52425291/187_212.pdf

Characterization and source apportionment of carbonaceous PM2.5 particles in China - A review

Durability of Concrete

Brazilian red propolis: Chemical composition and antibacterial activity determined using bioguided fractionation.

The area around Lake Ziway in Ethiopia is going through a major agricultural transformation with both small-scale farmers and large horticultural companies using pesticides and fertilisers at an increased rate. To be able to understand how this influences the water quality of Lake Ziway, water quality data was gathered to study the dynamics of pesticide concentrations and physicochemical parameters for the years from 2009 to 2015. Results indicate that for some physicochemical parameters, including pH, potassium and iron, over 50 % of the values were above the maximum permissible limit of the Ethiopian standard for drinking water. The fungicide spiroxamine poses a high chronic risk when the water is used for drinking water, while the estimated intake of diazinon was approximately 50 % of the acceptable daily intake. Higher-tier risk assessment indicated that the fungicide spiroxamine poses a high acute risk to aquatic organisms, while possible acute risks were indicated for the insecticides deltamethrin and endosulfan. Longer-term monitoring needs to be established to show the water quality changes across time and space, and the current study can be used as a baseline measurement for further research in the area as well as an example for other surface water systems in Ethiopia and Africa.

/pdf/impacts-of-nutrients-and-pesticides-from-small-and-large-1qz4letezm.pdf

Impacts of nutrients and pesticides from small- and large-scale agriculture on the water quality of Lake Ziway, Ethiopia

The adsorption/desorption process of borate was studied at Pt(111) in acidic solution by cyclic voltammetry. A so-called butterfly wave in the cyclic voltammogram of Pt(111) in HClO4 shifted to negative direction upon the addition of boric acid with the disappearance of its sharp spikes. The shift in potential was found to be −57 mV with a tenfold increase of boric acid concentration. This illustrates that this anomalous wave is due to borate adsorption/desorption by a one-electron transfer process. The borate adsorption/desorption wave was observed to shift by −63 mV/pH. At pH>3, the anomalous wave splits forming two separate waves, depending on the pH and the scan rate. The appearance of two waves is assigned to the change in the adsorption mode of borate or the participation of OH in the adsorption process.

I. Specific adsorption

GC-MS is highly effective and versatile analytical techniques with numerous scientific applications to cater the field of applied Sciences and Technology. This review elaborates the significant uses of this technique. It is a very useful for quality control, analytical research, impurity profiling and maintenance for human welfare and development.

GC-MS Technique and its Analytical Applications in Science and Technology

Treatment of hazardous wastes existing as effluent using cement-based solidification/stabilization is an effective option for remediating environmental pollution. Among the various treatment techniques, it is one of the most widely acknowledged methods for treating the wastes. The primary objective of this review is to survey our current knowledge in this subject, focusing on cement chemistry, the effects of inorganic (heavy metals) and organic compounds on cement hydration and the mechanisms of immobilization of different organic and inorganic compounds.

Environmental Pollution Remediation through Solidification/Fixation of Heavy Metal Ions in Portland Cement

In this research paper, use of biological agents for the treatment of effluent is more environmental friendly and can lead to the production of more value added products like biogas and compost etc. Pulp and paper mill is the major industrial hub in our country. The heavy demand for the paper helps in steady expansion of paper industries. Pulp and paper industry is one of the largest and most notorious sources of industrial pollution. The Ministry of Environment and Forest, Govt. of India has categorized the pulp and paper industry as one of the twenty most polluting industries.

/pdf/characterization-and-isolation-of-fungi-for-removal-of-color-1rjcpldy4h.pdf

Characterization and Isolation of Fungi for Removal of Color from Pulp and Paper Mill Effluent, Meerut (India)

The rapid industrialization in Tarai Bhavan region of Udham Singh Nagar, Uttarakhand has exposed the soil and water industrial effluent rich in pesticides like chlorophenols that are adversely affecting the ecosystem and disturbing the food chain. Soil is the basic requirement to sustain life on this earth for the living being including human beings, animals, planet or microorganisms (like bacteria and fungi). Bioremediation to remove pollutants is economic than the equivalent physico-chemical methods. It offers the potential to treat contaminated soil and ground water at the site without excavation. It requires lesser input and preserves the frame. The most attractive feature of bioremediation is the reduced impact on the ecosystems. In this study, both the microorganisms of bacteria and fungi P. fluorescence and P. chrysosporium were inoculated in fresh minimal salt medium containing 0, 10, 50, 100, 200 and 500 ppm of pentachlorophenol (PCP) concentrations in separate flask for few hours (4, 8, 16 and 32) and their potentiality to degrade PCP was assessed and found to be fruitful.

Bioremediation of Polluted Soil Obtained from Tarai Bhavan Region of Uttrakhand, India

The effort was made to screen the effect of ultrasonic waves on the purification of waste water. The ultrasonic treatment was found to be effective for the waste water purification. It was found that low intensity ultrasonic irradiation can improve the microbial activity and thus it can be used to enhance the biological treatment of wastewater and increase the treatment efficiency by improving microbial activity in the biological reactor. The biological effects of low intensity ultrasound and the mechanisms associated with the enhancement of biological activity were discussed. The applications of ultrasonic waves in bioengineering and biochemical studies are comprehensively summarized.

Manish Kumar Goyal

Papers

GC-MS Technique and its Analytical Applications in Science and Technology

Environmental Pollution Remediation through Solidification/Fixation of Heavy Metal Ions in Portland Cement

Characterization and Isolation of Fungi for Removal of Color from Pulp and Paper Mill Effluent, Meerut (India)

Bioremediation of Polluted Soil Obtained from Tarai Bhavan Region of Uttrakhand, India

Screening the Effect of Ultrasonic Wave on Effluent Treatment