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Another critical aspect of wastewater treatment involves the removal of dissolved organic matter and nutrients, particularly nitrogen and phosphorus. Chemicals like chlorine and ozone serve as disinfectants, playing a vital role in eliminating pathogenic microorganisms from treated wastewater. While chlorine is commonly used due to its effectiveness and relatively low cost, it can produce harmful by-products, prompting the exploration of alternative disinfectants like ozone, which decomposes into oxygen and leaves no toxic residue.
what chemicals are used in wastewater treatment...
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The incorporation of fragrance into plastics is achieved through selected additives that can impart specific scents to the final products. These additives can be designed to release fragrance gradually over time, a feature particularly desirable for items such as scented candles, air fresheners, and personal care products. The process involves embedding microcapsules of fragrance within the plastic matrix, which slowly release the scent when the product is used or comes into contact with air.
fragrance additives for plastics...