Anaerobic Biodigestor
Anaerobic Biodigestor is an equipment used for the production of biogas, a mixture of gases - about 75% methane and 25% Co2 produced for bacteria that digest organic substance in anaerobic conditions (that is, in oxygen absence). A biodigestor is nothing more than a chemical reactor where the chemical reactions have biological origin. Biogas can be used:
1) as combustible in substitution of the natural gas or the Gas Liquefied Petroleum (GLP), both extracting of mineral reserves.
2) to cook in agricultural residences next to the production place (saving other power plants, as mainly firewood or GLP).
3) in the agricultural production as, for example, in the heating of installations for very sensible animals to the cold (pigs up to 15 days of age, for example) or in the heating of greenhouses of vegetal production.
Green Roof
Green roof is a viable and sustainable alternative in relation to the traditional roofs and slabs, as it facilitates the management of large loads of storm water, improving thermal, environmental services and new recreation areas. The green roof also provides a much cooler environment than other roofs, keeping the building protected from extreme temperatures, especially in summer, reducing up to 3 ° C. In artificial environments such as urban environmental, it promotes rebalancing, bringing the benefits of vegetation for public health and biodiversity.
The green roof also keeps the relative humidity of air through the surroundings of the building, forms a microclimate and purifies the atmosphere surrounding the building, forming a micro ecosystem. It contributes to the combat of the greenhouse effect, increasing the 'kidnapping' (withdrawal) of carbon from the atmosphere and at the same time brings more harmony, wellness and beauty for residents and / or occupants of the building, as we can see in the picture below.
Hoods
They're a wind system that is designed to industry, agricultural warehouses, gyms and any other environment where a continuous exchange of air is necessary.
They're driven by the force of the wind or by convection and they accommodate the internal and external temperatures of the environment and especially the renewal of the ambient air.
They aren't noisy, they operate uninterruptedly and there’s no maintenance cost. It’s a low cost alternative for energy savings and immediate amortization.
Water reuse
Water is used in an inconsequential way every day. Through much time in the bath, lots of rinses in the washing machine, the tap running when washing dishes and vegetables. Likewise, Brazilian industry generates highly polluted water in production processes without showing concern for water resources. The question is: why don’t we take advantage of this water?
This question is already part of some housewives day-to-day, using the water resulting from washing machine to flush, wash sidewalks, bathroom and other rooms of a house. The industry is also waking up to the water reuse. The main advantage is the savings of up to 70% of spending on water, according to AGCO in Brazil.
What about you? What do you do to help the environment?
YE1 - Tue/Thu 17:00h
teacher: Evelyn Marques
