Method and apparatus for treating polluted and malodorous river

A process of treating a polluted and malodorous river, comprising:

• 1) withdrawing a sludge from a river bed, and separating, dehydrating, and drying the sludge;
• 2) producing biochar from the separated, dehydrated, and dried sludge;
• 3) clearing away and pulverizing floating debris and river bank refuse, dehydrating and drying the pulverized floating debris and river bank refuse, and then producing biochar from them;
• 4) delivering the biochars produced in steps 2) and 3) back to the river bed to adsorb ammonic nitrogen form and phosphorus generated by degradation of organic matter in the river bed, thereby cleaning river water;
• 5) performing purification treatments of flocculation, precipitation, and activated coke filtration and adsorption on sewage water discharged by the dehydration in step 2) and 3), and discharging the purified sewage water back to the river;
• and
• 6) withdrawing water from one end of a river segment to be treated with a water pump, sequentially passing the water into a container-type flocculation device, a container-type precipitation device, and a container-type activated coke filtration and adsorption device for performing purification treatments of flocculation, precipitation, and activated coke filtration and adsorption, and discharging the treated water back into the river at the other end of the river segment after it reaches a water quality standard.