In recent years, with the deepening of the national policy of "pollution-free food", the quality standard of drinking water for livestock and poultry has become the core issue for the sustainable development of the aquaculture industry. According to statistics, about 11% of farms in China rely on natural well water, of which the proportion of hard water is high, resulting in frequent problems such as poultry immunization failure, reduced cow milk output, and slow pig growth. At the same time, the suspended solids, harmful substances and bacteria in aquaculture wastewater pose a serious threat to the ecological environment, and the eutrophication of surface water is intensified. In this context, Henan Xinxiang Lifelte Filter Co., LTD. (hereinafter referred to as "Lifelte"), with its self-developed reverse osmosis (RO) water treatment equipment, provides a set of efficient and environmentally friendly water quality solutions for the aquaculture industry to help the coordinated development of animal husbandry economy and ecological protection. ** 1, the difficulty of hard water and the breakdown of RO technology: from water quality purification to the improvement of farming efficiency ** In the traditional farming industry, untreated hard water (high calcium and magnesium ion content) not only affects the digestive system of livestock and poultry, but also interferes with the absorption of feed nutrients, resulting in prolonged growth cycle and decreased immunity. Lifelte RO equipment through the "pretreatment +RO membrane filtration + post-treatment" three-stage purification system, to achieve water quality "soft and hard conversion" and deep removal of pollutants: 1. ** pretreatment stage ** : The use of multistage filtration (PP cotton + activated carbon + softened resin) combination, effectively block sediment, rust, residual chlorine and organic matter, reduce the hardness of water, to provide protection for RO film; 2. **RO membrane core filtration ** : The use of 0.0001 micron aperture reverse osmosis membrane, 99% of bacteria, viruses, heavy metals and pesticide residues, the output of safe water quality comparable to pure water; 3. ** Post-treatment optimization ** : Add trace elements through the mineralized filter, adjust pH value, and meet the physiological needs of different livestock and poultry breeds. ** Practical application results ** shows that after the introduction of the Liefert RO system in a large-scale pig farm, the diarrhea rate of piglets is reduced by 40%, the fattening period is shortened by 15 days, and the feed conversion rate is increased by 12%; The daily milk production of the dairy farm increased by 1.2 kg, and the quality of the dairy products met the EU export standards. A person in charge of a poultry breeding cooperative in Henan said frankly: "RO water can reduce the incidence of chickens, reduce the cost of medicine by 30%, significantly improve the meat taste, and significantly increase the market premium ability." Second, the "double-edged sword" of wastewater treatment: RO equipment to crack the problem of pollution and build a circular economy ** aquaculture wastewater treatment has been a key area of environmental protection supervision. Lifelte RO equipment shows unique advantages in wastewater resource utilization: ** High-efficiency concentration separation ** : The equipment divides the wastewater into "through water" and "concentrated liquid", through water can be used for livestock drinking or irrigation, concentrated liquid through further biochemical treatment standards discharge; ** Intelligent monitoring and energy-saving design ** : Integrated PLC control system real-time monitoring of water quality parameters, automatic adjustment of the operation mode, ton of water treatment energy consumption is reduced by 20% compared with traditional technology; ** Modular combination ** : For different farming scales, we provide customized programs such as "single-stage RO" and "two-stage RO+MBR membrane bioreactor" to ensure that the effluent COD and BOD indicators are better than the "Pollutant Discharge Standard for Livestock and Poultry Industry" (GB 18596-2001). The Leefert RO system reduces the cost of wastewater treatment from 3.5 yuan per ton to 2.2 yuan, saves 12,000 tons of water annually, and reduces 120 tons of COD, which is rated as "Agricultural water saving and emission reduction demonstration project" by the local government. Wang Ming, a professor at the College of Environment, China Agricultural University, pointed out: "The application of RO technology not only solves the problem of aquaculture wastewater pollution, but also reduces the operating cost of the industry through resource recycling, providing a feasible path for the green transformation of animal husbandry." * Third, the dual drive of policy and market: RO equipment into farming enterprises "competitiveness standard" **2024 "National Groundwater pollution Prevention and control Plan" clearly requires "strengthen the pollution prevention and control of livestock and poultry farming", "animal drinking water quality standards" (NY 5027-2023) on microorganisms, heavy metals and other indicators proposed stricter limits. In this policy context, RO equipment, with its technical compliance and economic benefits, has gradually become the "necessary option" for aquaculture enterprises to upgrade: ** Compliance protection ** : the water output of the equipment meets the "Sanitary Standard for Drinking Water" (GB 5749-2022), avoiding the risk of environmental penalties; ** Cost optimization ** : Although the initial investment is higher than traditional equipment, the low maintenance requirements and long-term operation of the RO system (membrane life of 3-5 years) make the comprehensive cost lower than chemical treatment; ** Brand premium ** : Water quality traceability system and "no resistance farming" label, help enterprises to expand the high-end market. Under the common demands of food safety and ecological protection, Henan Xinxiang Lifelte Filter Co., LTD., with reverse osmosis technology as the core, has built a full chain solution from drinking water purification to wastewater treatment for the aquaculture industry. Its equipment not only solves the problem of hard water hazards and pollution emissions, but also reduces industry costs and improves the quality of livestock and poultry products through technological innovation. With the continuous tightening of policies and the upgrading of market demand, RO equipment is expected to become the "infrastructure" of standardized configuration of the livestock industry, and promote the accelerated evolution of China's livestock industry to a green, efficient and sustainable direction.