Sri Lanka is an agricultural country, it is important to use water efficiently due to the scarcity of good quality water. The project introduced a novel watering device made from the waste plastic water bottles installed by the side of the plants adapting the drip irrigation system to irrigate to the root zone. The research proved that seawater irrigation with solar evaporation techniques can also be used in modern agriculture especially for low water-required crops. At the same time, farmers will be able to conserve water and reduce the operational cost of cultivation and, when practiced at a large scale, bring salt as a by-product.
Este proyecto presenta un sistema de recogida de agua de lluvia que reutiliza botellas de PET, que interconectadas con otras botellas forman un depósito de agua vertical, compacto y resistente a las presiones, que ocupa un espacio reducido. El proyecto tiene como objetivo satisfacer las necesidades de ahorro de agua de la Escuela Primaria Guillermo Frías, ubicada en Mecapaca (Ciudad de La Paz); esta zona presenta constantes problemas relacionados con el suministro de agua. El sistema tiene una función similar con Ekomuros, pero a diferencia de ellos, tiene un sistema de filtración basado en el uso de cáscara de quinua, que contiene saponina. La saponina es un antifúngico;que elimina hongos y bacterias, también hace espuma, por lo que el agua recolectada se puede utilizar en los baños de los niños de primaria de la escuela.
The water crisis in megacities like Dhaka intensifies as we don’t realize how much water we use or how much we waste. The primary purpose of our work is to reduce water wastage so that we can conserve water resources. In our paper, we tried to develop an integrated system, which will help people track and predict their water usage habits to suggest more efficient behaviours which will be easy to implement as well so that it can be popularised in megacities. Moreover, the system includes an option to reuse greywater by recycling it to reduce unnecessary water usage and prevent wastage. As a result, the proposed system will help us to improve our water usage behaviours and conserve our limited resources.
As the world’s population grows, the demand for food is growing as well. Therefore we need to handle our agricultural grounds with all love and care it needs. Fertilizers are essential in the optimization of the soils. In this project the effect of particle size in fertilizers was researched, especially in dried organic compounds like hay. Firstly the concentration of soluble content out of dead organic material in various particle sizes was looked at. After the first experiment the influence of particle size on water absorption and retainment was researched. In this manner water can be used as efficiently as possible, which leads to less water needs and higher yields. This shows why size matters.
Satellites have become an essential part of our everyday modern life. Especially weather satellites as they provide a basis for weather forecasts from a unique perspective. However, did you know that anyone, anywhere, can receive images and data directly from weather satellites with low-cost equipment? The objectives of this study revolve around the UN’s Global Goals for sustainable development and how to introduce more accessible and democratic ways of conducting water and climate research. This study, therefore, examines if it is possible to conduct a scientific study with images directly from weather satellites. The study presents a novel way of receiving and analyzing sea surface temperature (SST) in the Baltic Sea region and its development during the fall of 2020.
In my research I examined the potential of algae cultivation in close proximity to marine offshore fish cages, creating an integrated farm model, which produces animal and plant protein, using negligible quantities of freshwater resources.
The results proved Ulva algae to be suitable for use as a biofilter, which reduces the environmental negative impact of offshore fish cages by assimilating excess nutrients and nitrogenous compounds emitted from fish production. Cultivation of algae and fish in an integrated system may reduce inland beef, poultry, and vegetable agriculture, thus significantly reducing the use of fresh water, potentially saving hundreds trillions of liters of water annually.
The problem of drought, limited water resources and pest infestation is a major problem for sugarcane seedling growth. The researcher develop an innovative Bio-Moisture-Nutrient (ฺBMN) Absorbing Belt for Promoting the Sugarcane Seedlings Growth from local waste; Bagasse and Fish Scales (Cirrhinus Microlepis) to maintain soil moisture, provide plant nutrients and prevent pest. The innovation can solve the problems in water management and agriculture that align with the Sustainable Development Goals (SDGs) and Thailand’s Bio-Circular-Green agriculture model.
The result found that the BMN absorbing belt maintain soil moisture before the permanent wilting point 2 times better from control. The belt helping to reduce water usage 50% and save production costs 52.93% from traditional cultivation. For the efficiency of insect protection against pests was 93.12 % decrease in pests compared to the control group. However, the production cost of BMN absorbing belt was low price about 0.06 USD per piece when calculated from 200 pieces production or more.
Mazahuas are an indigenous group that lives in a small area in Central Mexico and have accumulated centennial knowledge on the use of plant substrates as cleansing agents. In this project, students interviewed the Mazahua community, documented the artisanal soap making process, and compiled a list of seven substrates, such as soda, sanacoche and wood ashes, used by the Mazahuas in the elaboration of traditional natural biodegradable soaps. Biodegradability and substrate performance as cleansing agents were assessed by performing phytochemical analysis, concluding that these soaps comply with their purpose as detergents while having a lower environmental impact. Preservation of the Mazahua culture can provide an alternative to the use of commercial detergents, one of the main sources of water pollution.
According to New Straits Times, about 100 farmers in Pinang Tunggal, Paya Keladi and Pantai Kamloon in Penang, are at risk of suffering major losses when there is inadequate water supply to irrigate paddy fields. My innovative plan is to harvest rain and runoff water by the usage of hi-tech solutions such as IoT to supply water in the underground storage automatically during drought. This idea does not only put an end to drought issues faced by the farmers but also increases the yield of food in my beloved country. It achieves 3 UN SDGs which are Goal2-Zero hunger, Goal13-Climate Action and Goal15-Life on land. I believe that my project will certainly create a better and greener future globally.