Process for preparing hadite by utilizing chemical residual sludge

The present invention relates to a process for recycling solid industrial waste, discloses a process for chemical sludge using fired ceramic. The first process is mechanical dewatering sludge, dried, ingredients, dry blending, stirring and then mixing with water, granulated to obtain raw material ball, the ball after drying raw material, after calcination 1050 ~ 1300 ℃ form ceramic sludge. Heavy metals leaching at concentrations well below GB 5085.3-2007 (hazardous waste identification standard extraction procedure toxicity). This process not only less energy consumption, low production cost, but also opened up sludge from waste to treat waste and waste recycling processing new way. It has significant environmental and economic benefits.