Geomembrane
Sealing with PVC Geomembranes
Use of Geomembranes is required by environmental agencies for various types of works, and is considered the most effective product in the prevention of environmental pollution.
PVC Geomembrane can easily be welded in panels, as well as great flexibility, high resistance to puncture, excellent mechanical strength and high impermeability.
Irrigation
This technique is used in agriculture and its main objective is to control water supply to plants in sufficient quantity at the right time, ensuring the survival and productivity of the plantation. It complements the natural precipitation, and in some cases, enriches the soil through the deposition of nutrients.
Treatment lagoons
The implementation of a wastewater treatment plant is aimed at removing the major contaminants from wastewater, returning them to the receiving waters without changing its quality. The sewage system of a city receives sewage from homes and industries, and in case the latter generates highly toxic waste it should be treated in units within these industries.
Treatment Systems:
Facultative ponds: secondary treatment of effluent and they refer to the dual environmental characteristic of this pond: aerobic on the surface (variable) and anaerobic at the bottom. The aerobic region, depends on: incidence of sunlight.
Anaerobic pond: primary treatment of effluent sized to receive high organic loads, which prevent the existence of dissolved oxygen in the middle.
Facultative ponds:
Facultative ponds: Facultative ponds are shallower ponds (1.5 to 3.0 m).Together with the organic matter from small (finely particulate BOD) does not sediment, remaining dispersed in the liquid mass. In the most superficial layer it is the aerobic zone. In this zone, organic matter is oxidized through aerobic respiration.
The need for the presence of oxygen is supplied in half by the algae photosynthesis. Thus we have a perfect balance between consumption and production of oxygen and carbon dioxide.Below the penetration of solar energy, photosynthesis does not occur resulting in facultative zone, composed of groups of bacteria which can survive and proliferate in both the presence and absence of oxygen.
In the bottom layer of the facultative layer where the deposit of settleable BOD occur, it forms an anaerobic zone, where sediments undergo the process of decomposition by anaerobic microorganisms, and slowly converted into carbon dioxide, water, methane and others.