●Heilongjiang Province:
Mishan City Sewage Treatment Plant, treatment scale 30,000m³/d; Harbin City Sewage Treatment Plant, treatment scale 20,000m³/d;
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●Liaoning Province:
Huludao City Sewage Treatment Plant, treatment scale 30,000m³/d;
Shenyang City Sewage Treatment Plant, treatment scale 10,000m³/d;
Anshan City Sewage Treatment Plant, treatment scale 20,000m³/d;
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●Jilin Province:
Changchun City Sewage Treatment Plant, treatment scale 40,000m³/d;
Baicheng City Sewage Treatment Plant, treatment scale 20,000m³/d;
Jilin City Sewage Treatment Plant, treatment scale 10,000m³/d;
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