nutecoverseas UAE

Greywater, is generally accepted as being wastewater generated from wash hand basins, showers and baths, which can be recycled on-site for uses such as WC flushing, landscape irrigation and constructed wetlands. Greywater often excludes discharge from laundry, dishwashers and kitchen sinks due to the high nutrient levels. Most Greywater is easier to treat and recycle than black water, because of lower levels of contaminants. If collected using a separate plumbing system from black water, domestic Greywater can be recycled directly within the home, garden or company and used either immediately or processed and stored. If stored, it must be used within a very short time or it will begin to putrefy due to the organic solids in the water. Recycled Greywater of this kind is never safe to drink, but a number of stages of filtration and microbial digestion can be used to provide water for washing or flushing toilets. Some Greywater may be applied directly from the sink to the garden or container field, receiving further treatment from soil life and plant roots. Given that Greywater may contain nutrients, pathogens, and is often discharged warm, it is very important to store it before use for irrigation purposes, unless it is properly treated first.

An oil-water separator is a device designed to separate gross amounts of oil and suspended solids from the wastewater effluents of oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial sources. Oil separator is a gravity separation device designed by using Stokes Law to define the rise velocity of oil droplets based on their density and size. The design of the separator is based on the specific gravity difference between the oil and the wastewater because that difference is much smaller than the specific gravity difference between the suspended solids and water. Based on that design criterion, most of the suspended solids will settle to the bottom of the separator as a sediment layer, the oil will rise to top of the separator, and the wastewater will be the middle layer between the oil on top and the solids on the bottom.

Membrane bioreactor (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment Membrane bioreactors can be used to reduce the footprint of an activated sludge sewage treatment system by removing some of the liquid component of the mixed liquor. This leaves a concentrated waste product that is then treated using the activated sludge process. In MBR processes it possible to operate at higher mixed liquor suspended solids (MLSS) concentrations compared to conventional settlement separation systems, thus reducing the reactor volume to achieve the same loading rate.

Gas flow is passed through the carbon adsorption system including one prefilter (demister) and one carbon scrubber, by a fan located at the inlet of the system. The clean air is discharged through the stack installed on top of scrubber. Water washable activated carbon is used in this system to remove 99% of H2S gas.

Delta Activated Alumina Water Treatment Products are adsorbents which remove contaminants on a combination of chemisorption and physisorption and particulate (or physical) filtration for the removal of metal contaminants from water. Activated alumina, with its many types of adsorptive sites and high surface area, is the perfect choice for the adsorption of various unwanted minerals in water, with proven results for arsenic, high levels of fluoride, copper, zinc, lead and phosphates. There is also the potential for chromium, silica, selenium and mercury

Reverse Osmosis (RO) was developed in the late 1950’s under U.S. Government funding, as a method of desalinating seawater. Reverse osmosis (RO) is a separation process that uses pressure to force a solvent (water) through a membrane, which retains the solute (contaminant) on one side and allows the pure solvent (water) to pass to the other side. More formally, it is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentrate by applying pressure in excess of osmotic pressure. This process is the reverse of the normal osmosis process, which is the natural movement of solvent from an area of low solute concentration, through a membrane, to an area of high solute concentration when no external pressure is applied. The membrane here is semi-permeable, meaning it allows the passage of solvent (water) but not of solute (contaminant).