Modification method for energy utilization of sludge or organic waste

[0033] The original sludge of a municipal sewage treatment plant with a water content of 89.7% was selected for energy utilization modification test. The original sludge has a peculiar smell; the modified and adjusted oxidizing and nitrating agent is (powdered) oxidizing A nitrating agent, wherein the strong oxidizing agent is sodium ferrate, the nitrate is lithium nitrate, and the mass ratio of sodium perchlorate to lithium nitrate is 40:60.

[0034] Under continuous stirring, add 0.8% of the oxidizing and nitrating agent to the original sludge, and continue stirring for 15 minutes in the stirring aging method to modify the characteristics of organic matter in the sludge to obtain modified sludge, and the odor disappears. Sprinkle the modified sludge on the raw coal according to 20% of the raw coal quality, then mix, dry, and grind to make a modified sludge coal powder mixed fuel sample A with 3% of the 80um sieve remaining.

[0035] Take the unmodified sludge and spread it on the

[0038] The dewatered sludge (moisture content 80.7%) of a municipal sewage treatment plant was selected for energy utilization modification test. The sludge has a peculiar smell; A nitrating agent, wherein the strong oxidizing agent is high vanadium mixed heteropolyacid potassium, the nitrate is potassium nitrate, and the mass ratio of high vanadium mixed heteropolyacid potassium to potassium nitrate is 50:50.

[0039] Under continuous stirring, add 0.7% of the oxidizing and nitrating agent to the dewatered sludge and stir evenly, and age for 30 minutes to modify the organic matter properties in the sludge to obtain modified sludge without odor; The permanent sludge was spread on the raw coal according to 10% of the mass of the raw coal, and then mixed, dried, and ground to make a modified sludge-coal mixed fuel sample B with an 80um sieve of 2.7%.

[0040] Take the unmodified sludge and spread it on the raw coal according to 10% of the mass of the raw coal, then mix, dry and gri

[0043] The deep dewatered sludge (water content 57.8%) of a municipal sewage treatment plant was selected for energy utilization modification test. The dewatered sludge is lumpy and has peculiar smell; (liquid) oxidative nitrating agent, wherein the strong oxidant is potassium ferrate, the nitrate is lanthanum nitrate, and the mass ratio of potassium ferrate to lanthanum nitrate is 50:50.

[0044] Disperse the lumpy sludge, add oxidizing and nitrating agent accounting for 1% of the mass of the sludge into the bulk sludge, stir evenly, and age for 30 minutes to modify the characteristics of organic matter in the sludge to obtain modified sludge without peculiar smell ; Naturally dried for 3 days to obtain a modified sludge fuel sample C with a moisture content of 18.1%.

[0045] Take the unmodified sludge and dry it to the sludge fuel sample C' with a water content of 18%.

[0046] Under laboratory conditions, the comparison test of sludge fuel sample C and C' showed that the ign