Salher proposes tertiary treatment systems suitable for water reuse, depending on the final quality required and according to the intended uses.
Salher also designs appropriate treatments for the use of rainwater.
Salher equipment comply with the current regulations on water reuse for different uses, according to Directive 2000/60/CE, the EN 16941-2:2021 standard and Regulation (EU) 2020/741.
Configurations of tertiary treatments.
- To comply with the residential quality in the irrigation of private gardens and the discharge of sanitary devices;
- To meet the quality of the irrigation of urban green areas (parks, sports fields, street cleaning, etc.), forests, crops and industrial cleaning of vehicles;
- To comply with the industrial quality in process and cleaning waters (except food industry);
- To comply with quality in recreational uses such as golf course irrigation;
And for any other required water quality or other intended uses.
Salher reuse system.
The reuse system can be part of a structure with all interconnected elements or be independent element.
The Salher reuse station is a set of refining elements for the treatment of grey water (from showers, baths and washbasins) and treated wastewater (domestic and industrial). In both cases, water with an optimum quality is obtained depending on the different intended uses and complying with the maximum admissible values established by the current regulations on water reuse.
Used for the elimination of traces and micro-contaminants, obtaining a 100% effluent free of viruses, bacteria and other pathogens; water with maximum quality for reuse. The equipment that make up these systems are the filtration modules composed of membranes in the ultrafiltration range (nominal pore diameter <0.1 μm) and the GFRP skid or frame, with pre-filter assembly, UF membranes, peripherals, instrumentation, cleaning system and electrical panel board.
Active carbon filtration systems
Used for the elimination of traces of organic matter and free chlorine, the water deodorization and discoloration. The equipment that compose these systems are high performance filters equipped with filling material (active carbon) according to applications.
High performance filtration systems
Used for the elimination of traces of suspended solids. The equipment that compose these systems are high performance filters equipped with filling material of selected grain sizes according to applications, disk filters and cartridge filters.
Used for the elimination of pathogenic germs, disinfection of treated wastewater with high values of turbidity or color and maintenance of water quality in tanks. The equipment that make up these systems are responsible for chlorination and ultraviolet radiation.
Compact reuse plants.
Compact reuse plants are used to remove suspended solids, organic matter, intestinal nematodes, Escherichia coli, turbidity and free chlorine, deodorization and water discoloration.
Grey water and wastewater reuse compact plants reuse of grey and waste water, for different applications, GRISAL-AUT.
The compact plants of reuse of grey and waste water, for different applications, GRISAL-AUT, consist of a GRP structure with high performance filter with automatic cleaning system, loads of flint and anthracite sand, electrovalves, pressure gauges, filter rings, cartridge filter, sampling taps and UV lamp.
For its correct operation, the plant has a feed pumping unit, a raw water collection tank and an electrical panel. Optionally, a clean water accumulation tank and other requirements requested by the client can be included.
Compact plants for the reuse of industrial wastewater from automatic vehicle cleaning systems, LAVA-E.
The compact plants for the reuse of industrial wastewater from automatic vehicle cleaning systems, LAVA-E, consist of a GRP structure with a high performance filter with an automatic cleaning system, flint and anthracite sand loads, electrovalves, pressure gauges, filter rings, cartridge filter, active carbon filter with automatic cleaning system, activate carbon loads, taps sampling and UV lamp.
In addition, for its correct operation, the plant has a feed pumping unit, a raw water collection tank and an electrical panel. Optionally, a clean water accumulation tank and other requirements requested by the client can be included.
Compact water reuse plants through ultrafiltration technology.
For the reuse of wastewater, rainwater and treated water by means of highly efficient membrane systems, Salher designs compact water reuse plants using ultrafiltration technology.
It can be used for treated wastewater from urban population centers (sewage and grey water) and automatic vehicle cleaning.
The Salher reuse plants that include this system are equipped with ultrafiltration modules with reinforced hollow fiber hydrophilic tubular membranes with a pore size smaller than 0.1 microns, a cleaning system with a raw water tank, a reagent tank, a dosing system and control of disinfectant agent, compressor and cleaning circuit pump, a feeding system to the filtration modules, a safety pre-filter, instrumentation such as flowmeters, sensors, connections and fittings, the electrical panel with automaton or manual control and the GFRP skid with hydraulic and electrical interconnection of the different elements.
|active membrane area
|38 / 55 m2
|inlet / outlet
|dn32 / dn50
|pores size (microns)
|fiber id / od
|160 / 250 mm
|1730 / 1160 mm
Rainwater treatment equipment
For the reuse of rainwater, Salher designs the rainwater treatment equipment SAL-PLU, consisting of a compact structure with hydraulic and electrical interconnection of the elements, a filter head with automatic and manual cleaning, a system of disinfection with membrane dosing pump by electromagnetic drive, cylindrical polyethylene accumulation tank for the mixing of the product and a chlorine-pH manual test equipment and another to measure the flow rate, a recirculation pump with floating suction intake and level regulator and the electrical protection and command board.
Additionally for the recycling and treatment of rainwater, Salher offers the RAP model that filters and stores rainwater for reuse in irrigation.
This equipment that can be supplied for above-ground or underground installation consists of a storage tank made of GFRP that incorporates a filter with polyamide structure resistant to high pressures, a baffle at the inlet of the storage tank, a floating suction performing the cleaner water suction, a submersible pump for sprinkler irrigation and, optionally, an electrical panel board for protection, control and command.
Obtaining ultrapure water
Compact drinking water treatment plants by demineralization / electrodeionization
Halfway between purification and reuse, Salher designs the polishing treatments to obtain ultrapure water. Thus, we find the compact drinking water treatment plants by demineralization / electrodeionization, reference PUR-EDI, with which an excellent quality treated water is obtained, and the compact purification plants by continuous electrodeionization, reference PUR-CEDI.
This ion exchange demineralization equipment or electrodeionization module for the production of ultrapure water consists of a polishing system applied to previously osmotized waters with which it is possible to produce water with less than 0.1 μs / cm of conductivity. The residual silica concentrations can reach values of up to 1 g / l.
The PUR-EDI compact plant consists of high performance ion exchange filters, in GFRP, with automatic cleaning system, an electrodeionization module, of 5 and 1 micron microfiltration system, a feed system to the treatment of demineralization, a permeate control conductivity meter and the electrical panel for control and command of the treatment.
The purification compact plants by continuous electrodeionization designed by Salher represent an innovative technology for the production of high quality water. This demineralization system, which, due to its own operating cycle, does not require the use of regenerators such as acid and soda, is a treatment by which water with less than 0.1 μs / cm of conductivity can be produced in osmotized water. The residual silica concentrations can reach values of up to 1 g / l.
These plants are based on a compact structure on which there is a tank with a module of electrodeionization by electricity, selective membranes (cationic and anionic), ion exchange resins, a 1 micron microfiltration system, a feeding system to the filtration treatment, a conductivity meter to control the inlet and permeate, and the electrical panel board with PLC to control and command the treatment.
Check any general or specific questions about these or other equipment and solutions to our engineers.
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Engineering – Wastewater treatment – Purification – Liquid/solids separation equipment for industrial and municipal process applications – Surface water – Groundwater – Water Reuse – Drinking Water – Hydrocarbon and Oil Water Separation