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No, the sewage will be treated and discharged to nature, and nature will repair itself to form new water resources before it will be processed into standard water by the waterworks. It's not a professional expression, it's funny.
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Of course not, there are pipes for tap water, and sewage should be directly from the sewer into the sewage treatment plant or used as fertilizer in the villages on the edge of the city.
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Every household is discharging sewage into the sewer, and the water for washing clothes and vegetables is a little better, but the food scraps and the water for flushing the toilet are not daring to think about it. What is the fate of this water when it enters the sewer? Is it possible to return to our kitchen again? Xu Xiaodao's professional interpretation.
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No, that's disgusting.
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It seems that it should be recycled through sewage treatment and purification (not necessarily drinking water.) Guess ha.
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It's no problem to have your back to you.
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Don't think too much, don't think about anything. It's nothing more than a light bulb that gets wet and short-circuits.
When you get to a small restaurant, don't look at the table, don't look at the meal, don't look at the pot, it's too profound, the consequences will be known, rabbit.