● Total annual cost = equipment depreciation cost + energy consumption cost + maintenance cost + personnel cost + other costs ● The cost of fresh water per cubic meter is: Fresh water cost = Total annual cost / Annual water production Fresh water cost = $214,140 / 21,900 m³ ≈ $9.78/m³.

Several recommended household reverse osmosis water systems on the market： 1. A.O. Smith reverse osmosis water system 2. Midea reverse osmosis water system 3. CHUNKE reverse osmosis water system

How to deal with hard water? 1. Use a water softener 2. Magnetization treatment 3. Reverse osmosis filtration 4. Add chemicals How to deal with iron in water? 1. Oxidation precipitation method 2. Filtration method 3. Ion exchange method 4. Reverse osmosis method

At present, the common home water purification systems on the market mainly include the following types: ● Water filter kettle ● Tabletop water purifier ● Faucet water purifier ● Pre-filter ● Reverse osmosis (RO) water purifier ● Ultrafiltration (UF) water purifier

● Basic portable water softener ($200-$500) ● Mid-range portable water softener ($500-$1000) ● High-end portable water softener (more than $1000) The price of a portable water softener varies depending on factors such as brand, model, function and capacity.

Where does the solar reverse osmosis system need to be cleaned? 1. Solar panels 2. Pretreatment unit 3. Reverse osmosis membrane 4. Booster pump It is necessary to regularly check the operating status of the pump and clean the inlet and outlet filters, usually every 3-6 months.

Booster pumps are commonly used in home and small commercial reverse osmosis systems, and their lifespan is usually between 3 and 5 years. High-pressure pumps are used in industrial reverse osmosis systems and usually have a lifespan of between 5 and 10 years, or even longer.

According to the latest statistics, there are currently more than 120 wastewater treatment plants in Egypt. Among the many wastewater treatment plants, the Bahriya Al-Gamil Wastewater Treatment Plant in Cairo is the largest wastewater treatment facility in Egypt.

The main function of a water softener is to convert hard water into soft water. Hard water contains high concentrations of calcium and magnesium ions, which are easy to form scale in pipes, boilers and household appliances, affecting the efficiency and life of the equipment.

Due to its efficient filtering ability, the reverse osmosis filter can remove almost all dissolved minerals in the water. This means that the water provided by the reverse osmosis system is almost pure water and does not contain minerals.