A kind of sludge dehydration conditioner and dehydration method thereof

Abstract

The invention discloses a sludge dehydration conditioner, which comprises the following components in weight percentage: 30-70% desulfurization ash, 5-15% magnesium salt, 5-30% iron salt, 2-20% aluminum salt, 0.1 ~15% Magnesium Oxide. At the same time, it also provides a dehydration method of the conditioner, including the steps of preparation of conditioner solution, conditioning of sludge, preparation of flocculant solution, sludge dehydration and the like. The raw materials used in the present invention have wide sources, low price, low preparation cost, convenient use, good dehydration effect, can rely on existing sludge dewatering facilities, simple implementation process, and can effectively improve the stability and reliability of the sludge dewatering process It can be widely used in the treatment of various waste water, sewage and sludge.

Description

technical field

[0001] The invention belongs to the technical field of sludge treatment, and in particular relates to a composite sludge dewatering conditioner, and also relates to the application of the conditioner and a method for sludge dewatering. Background technique

[0002] Sludge dehydration is one of the most expensive and extremely critical processes in sewage treatment, which directly affects the moisture content of sludge, sludge production and the cost of subsequent transportation, sanitary landfill, composting for agriculture or incineration. The moisture in sludge exists in the form of interstitial water or free water (about 65-85% of sludge moisture), capillary water (about 15-20% of sludge moisture), adsorbed water (<10%), Combined water (<10%) and other four.

[0003] Usually, the moisture content of the sludge from the secondary settling tank is above 98%. In order to improve the sludge dewatering performance and the mechanical dehydration effect, i...

Images