Where did the wastewater from the chemical factories go? After treatment, the wastewater from chemical factories mainly goes to the following areas: Discharge into natural water bodies: Wastewater that meets treatment standards can be discharged into nearby rivers, lakes, reservoirs, and other natural water bodies as a source of water supply. For example, some cities' sewage treatment plants discharge treated water into nearby rivers to increase the river's water volume and improve the aquatic ecological environment. Reuse: The treated water can be used for various purposes, such as: Reclaimed water: The treated water can be reused as reclaimed water for industrial cooling, flushing, and other purposes. Urban miscellaneous use: The treated water can be used for landscaping, road spraying, etc. Agricultural irrigation: The treated water can also be used for agricultural irrigation. Treatment process: After entering the sewage treatment plant, the wastewater from the chemical factories will undergo a series of treatment steps: Physical filtration: Remove large particle impurities and floating debris through a grid. Biological treatment: Through activated sludge process, microorganisms are used to decompose organic matter, nitrogen, phosphorus and other pollutants in water. Chemical treatment: using chemicals to remove suspended solids and organic pollutants from water. Disinfection treatment: Ensure water quality safety through ozone disinfection and other methods. Through these processing steps, the wastewater from chemical factories can be effectively purified and reused, reducing environmental pollution.

Is it better for real dolls to have a skeleton or not? real dolls have their own advantages and disadvantages, whether they have a skeleton or not. The choice of which one is better depends on the usage scenario and personal preference. ‌ Advantages and disadvantages of skeletal solid dolls Advantages: Swinging ability: Solid dolls with skeletons can be arranged in various shapes, resulting in better photo effects, diverse movements, and more fun to play with. ‌ Realism: Skeleton dolls are usually more realistic and have better texture, suitable for users who like realism and posing. ‌ Disadvantages: High price: Solid dolls with skeletons are usually expensive and not suitable for users with limited budgets. Comfort: Due to the skeleton, holding may not be as comfortable as without a skeleton. ‌ Advantages and disadvantages of skeleton free solid dolls Advantages: Soft and comfortable: Skeleton free solid dolls have a better hand feel and are more comfortable to hold, suitable for users who enjoy intimate contact. ‌ Cheap price: Usually priced lower, suitable for users with limited budgets. ‌ Mobility: Skeleton free dolls can swing freely, making photography more natural. ‌ Disadvantages: Poor mobility: unable to perform complex movements, requiring the use of other supports. General texture: The texture is not as good as a solid doll with a skeleton. Applicable scenarios and user preferences Photography and posing: If you enjoy taking photos and posing, solid dolls with skeletons are more suitable for you. Intimate contact and sleeping while holding: If you enjoy sleeping or daily caressing while holding a doll, a boneless physical doll is more comfortable.