The discharge of sewage and industrial waste into the world’s freshwater bodies has become an increasingly alarming issue with highly pervasive implications: waterborne diseases contracted by exposure to contaminated water result in 3.4 million deaths each year. This project thus aims to establish a cost-effective and accurate method of real-time water impurity detection, and to design an early-warning system for water-borne disease outbreaks in rural and low-resource settings. A novel software application that applies deep convolutional neural networks and sensing technology to the bacteriological and chemical evaluation of freshwater sources was developed. When synergized with IoT, the application can facilitate communication with individual households, local governments, and health authorities, streamlining environmental support and increasing the efficacy of purification efforts.
Less than one percent of the earth’s water is easily accessible to us as freshwater and nearly half of this
water is heavily polluted with pesticides, emerging contaminants, and heavy metals due to waste from industry,
human establishments, and agriculture. This research aimed to remove these key classes of contaminants by
manipulating biochar surface area, controlling chemical composition and catalytic properties for oxidative
breakdown, adding surface complexing agents, and modifying intrinsic pore size.
Protein deficiency could be appearing in the future, because of the population growth, so the alternative protein sources will play main role in the nutrition of human population. In our research we used alfalfa(Medicago sativa) as alternative protein source, from which we could create a leaf protein concentrate. The isolation of leaf protein resulted a very large amount of brown juice and it has a harmful effect on the environment. For example it can cause eutrophication.
Accidental spills of oil products and the release of oil products into water bodies can also lead to deterioration of health and life of the population. Are there effective, affordable, environmentally friendly ways to eliminate oil pollution? What natural materials are the most effective for removing oil and gasoline from water surfaces? The search for answers to these questions became the main reason of our research.
Hypothesis: plant fibrous materials can be used for the sorption of petroleum products when they enter water bodies.
Thus, the hypothesis that it is possible to find available plant materials with the help of which it is possible to collect effectively oil and oil products from the surface of the water has been confirmed.
The San Pedro River, located in the border of Mexico and Guatemala, is of great importance to the Mayan culture, connects a wide wetland network, and is a revenue source to local communities, but is being affected by pollution and the growth of aquatic weeds. The rural border communities also face the scarcity of commercial fertilizers, which hinders their participation in productive programs. Here, we studied the potential use of aquatic weeds such as Eichhornia crassipes, P. stratiotes, and Salvinia molesta, to produce a biofertilizer. After performing physicochemical analysis, germination, and growth tests, we scientifically confirmed that the Biophyte fertilizer is safe and adequate for use by farmers. Finally, we also worked along the community to create know-how and awareness.
NATRIFIER DISPENSER is a natural purification system that helps to purify water polluted with petroleum product using locally sources materials such as Moringa Oleifera seed and granulated activated charcoal. This project also entails development of ‘’Natrifier’’ a sustainable mobile water purification flask for families living in affected communities to purify polluted water themselves.
Neonicotinoids are widely used pesticides whose harmful effects on biodiversity have been long recognized. This work analyzes the incidence and prevalence of five neonicotinoids in four different taxa of aquatic invertebrates in three sites of the Seyon River, in Switzerland. All samples analyzed were contaminated with at least one neonicotinoid, and two neonicotinoids found in the samples had been banned from use nine months prior to sampling: these facts highlight the substances’ ubiquity and high persistence in natural environments. The concentrations indicated a chronic exposure to neonicotinoids, except for one value which was ten times bigger than the others. These alarming results encourage further studies on the subject, in which the experimental methods developed for this work could be exploited.
Intensive land use for agriculture in the nearest future could involve depleted industrial fields contaminated by oil. For Kazakhstan, a country with a wide territory and a lack of water resources, it is important to apply eco-friendly cleanup technologies when planning extensive agricultural development. My work aimed to investigate the oil spills bioremediation with the application of the ex-situ method to clean the soil and water and for use in agriculture. There are 2 main stages: cultivation of oil destructing microorganisms; soil and water treatment in the presence of destructor. After watering the soil oil products go up on the water surface and make it possible for microorganisms to use them as the energy source and make it reusable for further purposes.
My study investigated the feasibility of a bio-flocculant as an accessible, safe, affordable and environmentally friendly option to reduce turbidity. Using a combination of dried lemon peel and chitosan, I tested different concentrations to find the optimal dosages to reduce turbidity. The bio-flocculant identified offered an affordable treatment option for those with limited access to clean water while being environmentally friendly and offering no adverse health effects sometimes associated with flocculation.