Ultra fine nano bubbles generally refer to bubbles with a diameter of 10-100nm. Shanghai Zhongjing uses multiphase fluid vortex cutting technology as its core, which combines the characteristics of ultra long residence, ultra high dissolved oxygen, and strong oxidation of bubbles. It achieves efficient applications in water treatment, waste gas/odor control, food processing, agriculture, and other fields, and the equipment is adaptable to extreme working conditions and can be intelligently controlled. Below is an explanation from principle to application:

1、 Core technical principles

The Shanghai Zhongjing ZJC-NM series adopts multiphase fluid vortex cutting technology (hydraulic cavitation+vortex cutting coupling). Through a specially designed gas-liquid mixing chamber and shearing device, the gas (air/oxygen/ozone, etc.) is dissolved and rapidly rotated to generate 10-100nm uniform bubbles. The core mechanism is as follows:

Ultra long retention and high dissolved oxygen: The rising speed in water is only 1/100 of that of traditional bubbles, with a retention time of 20-30 minutes and a dissolved oxygen efficiency of over 85% (traditional aeration of 20% -35%), rapidly increasing DO.

Self pressurized dissolution and free radical release: Bubbles are self pressurized due to surface tension, and at the moment of rupture (about 10 ⁻⁹ seconds), a high pressure of about 10 atm and a high temperature of 4400 ℃ are generated, which stimulates hydroxyl radicals (· OH) and oxidizes recalcitrant organic matter.

Strong adsorption and solid-liquid separation: The surface is negatively charged, with a specific surface area that is more than 100 times larger than traditional bubbles. It efficiently adsorbs suspended solids and heavy metal ions, and is combined with air flotation to achieve rapid separation.

Intelligent control: equipped with a CPU integrated motherboard, real-time monitoring and automatic optimization of parameters such as bubble size and gas-liquid ratio, suitable for complex working conditions.

3、 Key application areas (with Shanghai Zhongjing case and data attached)

Water treatment field

Industrial wastewater: Coupled with ozone treatment of printing and dyeing/coal chemical/pharmaceutical wastewater, COD removal rate is 85% -95%, ammonia nitrogen degradation rate is over 90%, and energy consumption of a certain chemical park project is reduced by 52%. Shanghai Zhongjing Environmental Protection Technology Co., Ltd.

Black and odorous water remediation: The in-situ remediation system activated indigenous microorganisms, and the dissolved oxygen (DO) in a certain river increased from 0 to over 4mg/L, resulting in a threefold increase in the decomposition rate of organic matter in the sediment.

Municipal sewage upgrading: Strengthen biological tank aeration, reduce sludge production by 30%, and stabilize effluent TN/TP to meet Class A standards.

Waste gas and odor control

Sludge drying and deodorization: Activated oxygen micro nano bubbles oxidize H ₂ S to SO ₄² ⁻, with a removal rate of 92% for odorous substances and no secondary pollution. Shanghai Zhongjing Environmental Protection Technology Co., Ltd.

VOCs and odor control: Cyclone cutting+ozone coupling, processing printing/coating exhaust gas, non methane total hydrocarbon removal rate of 80% -90%, reducing operating costs by 40%.

Food processing field

Fruit and vegetable/aquatic cleaning: Ozone micro nano bubbles penetrate deep into the gaps, with a pesticide residue removal rate of 95% and a sterilization rate of 99.9%, extending the shelf life by 2-3 times.

Meat deodorization: Oxidation of trimethylamine/hydrogen sulfide reduces COD in aquatic processing wastewater by 80%, and the reuse rate of reclaimed water reaches 75%.

Agriculture and Aquaculture

Aquaculture: Dissolved oxygen rapidly increased to 8-12mg/L, fish fry survival rate increased by 35%, feed conversion rate increased by 20%, and the yield per mu of a certain marine aquaculture base increased by 42%.

Agricultural irrigation: Nano bubble water irrigation increases leafy vegetable yield by 34.9%, reduces disease incidence by 60%, and reduces fertilizer use by 30%.

Other innovative applications

Oil and gas field oily wastewater: The oil removal efficiency of microbubble air flotation has been improved to 98%, and the treatment cost has been reduced by 50%, replacing traditional demulsification agents. Shanghai Zhongjing Environmental Protection Technology Co., Ltd.

Medical and daily chemical: Superoxide nano bubbles are used for cleaning medical devices, with a sterilization rate of 99.99%; Equipped with cleaning equipment, the cleanliness of clothing fibers is improved by 40%.

Shanghai Zhongjing has formed a complete product line from laboratory small equipment (0.5-20L/min) to industrial large-scale systems (single processing capacity of 300m ³/h) with its independently developed multiphase fluid cyclone cutting technology, which is suitable for multiple fields such as environmental protection, food, agriculture, energy, etc., and provides customers with integrated solutions