Principle: First, through advanced oxidation processes such as Fenton, electrochemical or UV/ozone, small molecules or harmless products in the oxidation pool such as refractory organic matters, chroma, and toxic substances are removed, and at the same time, iron and aluminum ions dissolved from the Fe2 +/electrode are generated under alkaline conditions. Fe (OH) 3 and Al (OH) 3 flocs are generated to directly capture suspended particles, colloids and heavy metals produced during the oxidation process to achieve simultaneous oxidation-coagulation-precipitation. nbsp;

Main role: Efficiently remove COD, BOD5, chroma and toxic and harmful organic matters. The total COD removal can reach 60%-80%, and the chroma removal rate is 98%. Significantly improve the biodegradability of wastewater and create favorable conditions for subsequent biological treatment; Simultaneous solid-liquid separation, the effluent turbidity is low and suspended solids are close to zero, which can be directly discharged or reused. nbsp;

Advantages: Compact structure, the three stages of oxidation, coagulation and precipitation can be completed in a single tank, saving 30%-50% of the land area; no need to add flocculants or significantly reduce the dosage of chemicals, and the operating cost is reduced by 20%-40%; Use backflow and microporous water distribution technology, strong anti-impact load ability and stable effluent water quality; low sludge output, and easy dehydration and disposal; localization of core equipment, low investment and maintenance costs, fully automatic operation can be achieved, and easy operation and management can be achieved.