Turning waste into gold: The civilized Wisdom in the complete set of water separation and recycling Equipment for used circuit boards. In the current era when electronic waste is piling up like mountains, the fate of a used circuit board is often to be landfilled or incinerated, with precious metals and harmful substances being discarded together. However, a complete set of equipment named "Water Separation and Recycling of Used Circuit Boards" has achieved the transformation of electronic waste into gold with its exquisite technological design. This set of equipment not only represents the advancement of recycling technology, but also reflects the transformation of human civilization's attitude towards resources - from predatory mining to recycling and regeneration, we are learning the wisdom of reconciliation with nature. The core of water separation and recovery equipment lies in its scientific sorting principle. Through multiple processes such as crushing, gravity separation, and electrostatic separation, the equipment can efficiently separate materials like metals, plastics, and glass fibers from circuit boards, with a metal recovery rate of over 98%. This separation technology based on the differences in the physical properties of substances demonstrates how humans can apply scientific laws to serve environmental protection goals. In his "Dream Pool Essays", Shen Kuo of the Northern Song Dynasty recorded the wisdom of the ancients in recovering copper from copper smelting slag. Today, we continue this ancient wisdom of resource recycling with more sophisticated technologies. From simple smelting to precise sorting, behind the technological progress lies a deeper understanding of the value of resources. The economic value of this set of equipment cannot be ignored. One ton of used circuit boards contains about 200 grams of gold, which is dozens of times the grade of gold ore. Water separation and recycling not only prevent the excessive exploitation of mineral resources but also create considerable economic benefits. A recycling company in Germany extracts precious metals worth over 200 million euros from electronic waste every year through similar technology. This confirms the concept that "garbage is a resource in the wrong place" and also embodies the core essence of the circular economy, which is to "turn waste into treasure". When resource recycling can create commercial value, environmental protection will no longer be a burden but become a new engine for sustainable development. On a deeper level, water separation and recycling technology represents the shift from industrial civilization to ecological civilization. The traditional industrial model is a linear thinking of "acquisition - manufacturing - disposal", while the circular economy builds a closed-loop system of "design - use - recycling - regeneration". The European Union has incorporated electronic waste recycling into its circular economy action plan, with the aim of achieving an 80% recycling rate for electronic products by 2030. This systemic transformation requires us to re-examine the relationship between humans and matter - no longer being conquerors of nature, but becoming participants in the material cycle. Just as the Taoist thought of "the unity of heaven and man" reveals, only by integrating into rather than opposing the natural cycle can human beings achieve true sustainable development. From the perspective of ecological civilization construction, the water separation and recycling equipment for used circuit boards is not merely a machine; it is also a symbol of progress in civilization. It symbolizes that humanity has finally begun to treat the Earth's resources with a humble heart and use the power of technology to heal the wounds caused by industrial civilization. From random disposal to precise recycling, the path we have taken is one of cognitive upgrading. In the future, when more similar technologies are applied, perhaps humanity can achieve a true reconciliation with the Earth, making every industrial production an organic part of the natural cycle. This might be the deepest wisdom hidden in those operating water separation equipment.