The Yantai Sewage treatment plant is the modernized water supplies group, the scale is big, sewage treatment ability, operation ability is big, this Sewage treatment plant's water leakage water quality achieves the country quality specification, the Yantai Sewage treatment plant sewage treatment way mainly uses the traditional active sludge law, but also has other like circulation aeration, the oxidation ditch active sludge defaecating law, the factory argues vigorously realizes the waste water “zero emissions”, improves Yantai's ecological environment effectively, the promotion economical benignity development.

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