With increasing pressure on water resources, the concept of beneficial use of treated water has quickly become a primary necessity for water agencies around the world. Water and wastewater reuse is increasingly integrated into planning and development in all countries, especially for soil irrigation and agriculture, so as to protect public health, increase water availability, prevent groundwater and coastal pollution and improve water resources and nature protection policies.
Why recover water?
Wastewater landfill is often very expensive > €5.00 M3. The industry is aiming for a gap of 2kg and 1kg in entry. Most don’t reach it! The average is > 3 unloading and 1 kg incoming. With Aneco® you REDUCE AND RECOVER water, you reduce waste, saving money!
Advantages of Aneco® over traditional methods:
• Accepted and approved solutions;
• On-site production on demand as required;
• Non tossico;
• Significant savings in activated carbon;
• Reduced installation costs for civil engineering works;
• Autonomous and automated systems.
With the introduction of ANECO® generators, relatively simple wastewater treatment or recovery technologies can be designed to provide low-cost sanitation and hygiene services, protecting the environment while benefiting from water reuse.
WHY IS ANECO® WATER DISINFECTION TECHNOLOGY BETTER
THAN TRADITIONAL CHLORINATION?
Although apparently similar to chlorine, Aneco® is unique and clearly superior to Sodium Hypochlorite in destroying spores, bacteria, viruses and other pathogenic organisms on an equal residual basis. Sodium Hypochlorite in a concentration of 5% is only effective in disinfection, but not in sterilisation.
Sodium Hypochlorite gives negative results, e.g. against cysts (Guardia, Cryptosporidium).
Most pathogens, particularly those carried by water, develop strong resistance to Sodium Hypochlorite over time. The use of Aneco® as a water disinfectant on a daily basis for more than ten years has shown that microorganisms do not develop resistance against Aneco® over time.
The contact time required for Aneco® is shorter, when compared to all the chemical biocides on the market today and commonly used, Sodium Hypochlorite, for example, loses its biocidal characteristic during long-term storage and is a potential hazard, of chlorine gas emission, during storage.
Aneco® is better and has superior characteristics to Sodium Hypochlorite even when diluted, and bactericidal efficiency remains at pH values between 5 and 7.2.
Aneco® is non-corrosive (even when in a more acidic pH form) mainly due to the low concentrations of Hypochlorite Ion and also due to the elimination of the caustic element normally present in Sodium and Calcium Hypochlorite.
The reaction between Aneco® and organic matter in water does not produce trihalomethanes as, for example, chlorine can.
CHEMISTRY VS Aneco® COMPARATIVE TABLE
REVERSE OSMOSIS DESALINATION
To meet its customers’ desalination needs, ANECO® decided to propose new chemical-free reverse osmosis systems, installed in containers, with a production capacity adapted to the requirements.
THE PRE-TREATMENT PROCESS
Desalination by reverse osmosis must be carried out in order to ensure minimum turbidity conditions and to remove suspended bodies or others (e.g. algae) as well as hard parts (calcium) and metals present in the water.
For the filtration phase, a series of qwartz filters designed in fibreglass is foreseen.
Pre-feeding pressurisation: Two parallel pumps positioned on the pre-feeding skid « with alternating operation » are provided for pressurisation.
Reverse OSMOSIS desalination
Dopo una prima filtrazione, con filtri di 5 micron che utilizzano cartucce After an initial filtration, with 5-micron filters using PP fibre cartridges, the liquid is sent to the filtration stage on semi-permeable membranes, where the water is pressurised at approximately 64 bar in order to obtain a flow of filtered water. The energy required for the process is supplied by centrifugal or piston-type pressurisation pumps, whose parts in direct contact with the seawater are made of duplex stainless steel, equipped with a state-of-the-art energy recovery system.
Two dosing stations, one for anti-scale and one for antioxidant products, help to preserve the membranes.
All hydraulic components of the high-pressure line are made of duplex steel.
The membrane vessels are made of glass resin (fiberglass) and support a pressure above the expected operating pressure of 64 bar. The low pressure circuit is made of rigid PVC for pressure pipes.
Energy recovery :
The facility is designed with a state-of-the-art energy recovery system that directly transfers energy from the high-pressure concentrate to the salt water equivalent at the inlet.
This technology, combined with membranes that have reduced pressure losses and high-efficiency pumps, offers a significant reduction in energy consumption. This solution guarantees savings of at least 50 per cent of the absorbed electrical energy.
The volume of the flow membranes will be automatic and programmable with the use of previously osmoticised water. The system includes automatic valves for the correct management of the flow volume, which are in turn controlled by the PLC and with the use of the pre-feed pump, will draw reverse osmosis water directly from the tank.
Management and control :
Il sistema di desalinizzazione dell’acqua è seguito da un quadro elettrico con unità di controllo e gestione “touchscreen" e un modem per il controllo e la programmazione remoto. La strumentazione per il controllo dei diversi flussi e pressioni verrà eseguita con traduttori che consentono la lettura e il tracking digitale.
eLisy disinfection system:
The new eLisy water disinfection system allows you to obtain purified and potable water that is perfectly clear, thanks also to an algaecide and floculant action, reducing all types of bacteria, including legionellosis, by 100%.
All 100% natural. eLisy units are designed for cleaning, disinfection and sterilisation systems with 0.05% – 1.0% salt solutions (NaCl or Kcl). The units electrolyse salt water using ceramic or polymer membranes that separate positive and negative ions.
The reactions of electrochemistry are the production of different types of active solutions. The purpose is to eliminate pathogens such as bacteria, viruses, spores, moulds and fungi, as well as cleaning and removing certain heavy metals in the water.
In recent years, however, the emergence of multi-resistant bacteria, the discovery of Legionnaires’ disease and other problems associated with chlorinated compounds have led to the search for new technologies and ways to disinfect water.
ANECO® technologies have enabled the production by electronic activation of Aneco® (HClO) known to eliminate pathogens; they produce hypochlorous acid also composed of natural sodium hypochlorite ions, with a real reduction in HAZARDS, COSTS and ENVIRONMENTAL IMPACT.
• Easy and safe to use
• Effective: Reduced contact time for sterilisation
• Biodegradable liquids
• Simplifies operating procedures and offers quick and safe benefits.
The strength of Aneco® (HClO) in terms of the concentration of active sodium hypochlorite (chlorine) can be adjusted as required through planned programming in the production machine. A flow regulator is installed in the hydraulic part to stop the eLisy unit in the event of a water shortage and causes the machine to restart when water flow arrives.
An on/off switch, with a power indicator, allows the eLisy unit to be manually stopped or reactivated. There are several basic models ranging from 20 to 10,000 l/h, and the production capacity will therefore vary according to requirements.
The Aneco® (HClO) produced by ANECO® is placed in a storage bin and then injected into the water system as required.
The dosing schedule will depend on the water quality and will be monitored by a flow meter connected to a dosing pump.
Based on extensive studies, the Aneco® solution (HClO) is:
• Environmentally friendly;
• Free of toxicity to humans, animals and nature;
• A powerful biocide;
• Can be safely disposed of in the sewage system;
• Very fast contact biocidal action;
• Can be used in all stages of disinfection and cleaning;
• No waste on any type of surface without a possible recommended dosage;
• Can be applied to liquids, hot or cold, on ice and still in spray form;
• Produced on-site, to eliminate storage and handling of chemicals.