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Chloride cycle dealkalizers operate similar to sodium cycle cation water softeners. Like water softeners, dealkalizers contain ion-exchange resins that are regenerated with a concentrated salt solution - NaCl. In the case of a water softener, the cation exchange resin is exchanging sodium (the Na + ion of NaCl) for hardness minerals such as ...
Water softeners are usually regenerated with brine containing 10% sodium chloride. [7] Aside from the soluble chloride salts of divalent cations removed from the softened water, softener regeneration wastewater contains the unused 50–70% of the sodium chloride regeneration flushing brine required to reverse ion-exchange resin equilibria.
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes
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In a 2020 study, approximately 300,000 domestic cats in Cape Town kill 27.5 million animals a year; this equates to a cat killing 90 animals per year. Cats on the urban edge of the city of Cape Town kill more than 200,000 animals in the Table Mountain National Park annually. Reptiles constituted 50% of killed prey, but only 17% of prey brought ...
Boiga dendrophila, commonly called the mangrove snake or the gold-ringed cat snake, is a species of rear-fanged venomous snake in the family Colubridae. The species is endemic to southeast Asia. It is one of the biggest cat snake species, averaging 8–9 feet (2.4–2.7 m) in length. [2] It is considered mildly venomous. Although moderate ...
Snakes in Mexican folk culture tell about the fear of the snake to the pregnant women where the snake attacks the umbilical cord. [1] The Great Goddess often had snakes as her familiars, sometimes twining around her sacred staff, as in ancient Crete, and they were worshipped as guardians of her mysteries of birth and regeneration. [2]
The eastern racer, or North American racer (Coluber constrictor), is a species of nonvenomous snake in the family Colubridae. The species is endemic to North America and Central America. Eleven subspecies , including the nominotypical subspecies , are recognized, which as a group are commonly referred to as the eastern racers.