CN104117336A - Efficient indoor ammonia scavenging agent - Google Patents

Abstract

The invention aims at providing an efficient indoor ammonia scavenging agent. According to the technical scheme, the efficient indoor ammonia scavenging agent is prepared by the following steps: drying and activating coal slag for 3-6 hours at 120 DEG C, wherein the coal slag is generated after coal is combusted; subsequently taking out the coal slag, cooling in a drier, crushing, putting a certain amount of 20-35-mesh powder coal ash into a calcium chloride solution of certain concentration, and soaking for 8-24 hours; and filtering, drying in a drying oven of 120 DEG C till the mass is not reduced, and drying and activating for 1 hour at 700 DEG C, thereby obtaining the efficient indoor ammonia scavenging agent.

Description

A kind of efficient indoor gas ammonia scavenger

Technical field

The present invention relates to ammonia adsorbing domain, be specifically related to a kind of efficient indoor gas ammonia scavenger.

Background technology

Ammonia, inorganic compound, is gas under normal temperature, the gas of colourless irritant stench, soluble in water, when ammonia is water-soluble, amino molecule becomes a hydration ammonia with hydrone by Hydrogenbond, one hydration ammonia energy fraction is ionized into ammonium ion and hydroxide ion, therefore ammoniacal liquor shows alkalescent, the mucous membrane of energy skin ambustion, eyes, respiratory apparatus, people sucks too much, can cause lung swelling, thus dead.

Due to a large amount of generations of municipal sewage and industrial wastewater, and exhaust emissions, cause environment more and more to worsen.Situation day by day serious, causes control imperative.

Absorption method is to process a kind of important physical chemistry method of harmful in waste water and waste gas and difficult degradation pollutant, and active carbon is the most frequently used sorbing material, but due to lack of material, cost is higher, regeneration is difficult etc., and reason is restricted its application.Taking industry and agricultural wastes as raw material, preparation and exploitation are cheap, to replace active carbon be the important directions that sorbing material is studied to efficient adsorption material.

Summary of the invention

The object of this invention is to provide a kind of efficient indoor gas ammonia scavenger, the lack of material existing to overcome prior art, the shortcoming that cost is high.For achieving the above object, the technical solution used in the present invention is as follows:

Get the cinder after coal combustion, dry activation 3-6h at 120 DEG C after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out a certain amount of 20-35 mesh sieve is placed in certain density calcium chloride solution, soak 8-24h, dry in 120 DEG C of drying boxes after leaching, until quality no longer reduces, put into 700 DEG C of oven dry activation 1h and obtain this ammonia scavenger.

The present invention has following distinguishing feature:

(1) invent described ammonia scavenger, raw material sources are extensive, cheap;

(2) invent described ammonia scavenger preparation method simple, adsorption rate is high;

(3) invent the stable performance of described ammonia scavenger, the life-span is long, can preserve for a long time use.

detailed description of the invention:

Embodiment 1:

Get the cinder after coal combustion, dry activation 3h at 120 DEG C after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out the 20-35 mesh sieve of 100g is placed in 50% calcium chloride solution, soak 8h, dry in 120 DEG C of drying boxes after leaching, until quality no longer reduces, put into 700 DEG C of oven dry activation 1h and obtain this ammonia scavenger.

Embodiment 2:

Get the cinder after coal combustion, dry activation 5h at 120 DEG C after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out the 20-35 mesh sieve of 100g is placed in 60% calcium chloride solution, soak 12h, dry in 120 DEG C of drying boxes after leaching, until quality no longer reduces, put into 700 DEG C of oven dry activation 1h and obtain this ammonia scavenger.

Embodiment 3:

Get the cinder after coal combustion, dry activation 6h at 120 DEG C after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out the 20-35 mesh sieve of 100g is placed in 65% calcium chloride solution, soak 24h, dry in 120 DEG C of drying boxes after leaching, until quality no longer reduces, put into 700 DEG C of oven dry activation 1h and obtain this ammonia scavenger.

Claims (1)

1. the invention discloses a kind of efficient indoor gas ammonia scavenger, for achieving the above object, the technical solution used in the present invention is as follows:

Get the cinder after coal combustion, dry activation 3-6h at 120 DEG C after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out a certain amount of 20-35 mesh sieve is placed in certain density calcium chloride solution, soak 8-24h, dry in 120 DEG C of drying boxes after leaching, until quality no longer reduces, put into 700 DEG C of oven dry activation 1h and obtain this ammonia scavenger.