The result shows:(1) Tongyang river's water shows alkalescent, PH 78.
研究结果表明：（1）烔炀河水质呈弱碱性水，pH在78之间；
In addition, using the alkalescent printing and dyeing wastewater to replace tap water as dust-flushing water can avoid the erosion of acidic tap water to devices.
同时，以碱性印染废水代替自来水作为冲灰水，解决了自来水冲灰水呈酸性对设备的腐蚀问题。
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