Recently, water prices in many cities in China have risen, which has caused widespread concern among residents about water conservation. Some countries survey data show that cooking, washing, flushing toilets, bathing and other kitchen water accounts for about 80% of household water. Therefore, the improvement of kitchen and toilet washing equipment, the use of water-saving household equipment and the recovery of domestic sewage is the focus of urban water conservation.

Ultrasonic cleaning, no detergent

Much of the water in the home is used to clean food, utensils and clothing and other daily necessities. Countries such as the United States, Germany and Japan are gradually introducing household ultrasonic washing products. When the ultrasonic wave passes through the water, it will vibrate the liquid at a very high frequency, produce a strong shock wave, and cause the dirt on the surface of the cleaning surface to be damaged and fall off the surface of the object. Traditional cleaning machines rely mainly on the chemical action of detergent, and ultrasonic washing machine can not use detergent in principle, adding detergent is also only auxiliary degreasing role.

At present, the products have been developed ultrasonic washing machine, ultrasonic washing machine and ultrasonic washing tank. The use of ultrasonic dishwasher does not require high-pressure water and recycled water, everything is only in the form of water molecules vibration, so the machine noise is small, but also water saving, electricity saving. The ultrasonic wave produced by ultrasonic washing machine can produce strong water pressure, vibration of clothing fiber and separation of dirt and clothes. It is very popular in the Japanese market. Ultrasonic washing tank for washing cloth, glasses, toothbrushes and other small items, the machine is equipped with 2 ultrasonic vibrator to sink in water to produce numerous tiny bubbles the naked eye cannot see, these small bubbles in an strong impact crushing gap between seam dirt cannot ordinarily be washed to, than water washing thoroughly.

Laser cleaning does not use water at all

Laser cleaning technology can bring high energy laser beam irradiates the items you need to clean the site, make irradiated material vibration, melting and evaporation of a series of complex physical and chemical process, finally from the object surface. A large area of cleaning can be achieved by scanning a laser beam along a certain trajectory. Laser cleaning is a completely waterless cleaning method, and has a great prospect in water saving. The waste material produced by laser cleaning is basically solid powder, which is small and easy to store, and basically does not pollute the environment. It is a "green" cleaning process.

Laser cleaning technology development quickly in the past two years, but due to laser and supporting hardware is expensive, the scope of application of this technology are limited, at present this technology is mainly used in the fields of cultural relics, and large buildings such as cleaning, the Germans several times in recent years by using the laser cleaning technology to clean successfully attracted the attention of the ancient architecture of the Cologne cathedral.