초록 ▼

A stabilized lime slurry for treatment of biological solids in sewage. The composition preferably includes 30-36% calcium hydroxide, 10-16% potassium hydroxide, 2-4% potassium chloride, 2-4% magnesium hydroxide, all on a dry basis, and the balance in water. This composition raises the pH rapidly for

A stabilized lime slurry for treatment of biological solids in sewage. The composition preferably includes 30-36% calcium hydroxide, 10-16% potassium hydroxide, 2-4% potassium chloride, 2-4% magnesium hydroxide, all on a dry basis, and the balance in water. This composition raises the pH rapidly for destroying pathogens, is sufficiently concentrated for economically feasible transportation, and reduces the cost, difficulties and dangers of treating sewage with a lime based composition while providing a resulting product from the sewage treatment process which can be spread upon agricultural soil in a manner which improves soil fertility without introducing undesirable or contaminating materials into the soil.

대표청구항

[What is claimed is:] [1.](a) hydrated lime in an amount substantially in the range of 20% to 40% on a dry weight basis;(b) potassium hydroxide in an amount substantially in the range of 5% to 18% on a dry weight basis; and(c) water in an amount substantially in the range of 42% to 75% by weight.

[What is claimed is:] [1.](a) hydrated lime in an amount substantially in the range of 20% to 40% on a dry weight basis;(b) potassium hydroxide in an amount substantially in the range of 5% to 18% on a dry weight basis; and(c) water in an amount substantially in the range of 42% to 75% by weight.