Method for producing oxide layer material in landfill field for treating methane gas by using household refuse

Patent metadata

Field	Value
Publication number	US-10159933-B2
Application number	US-201615197223-A
Country	US
Kind code	B2
Filing date	Jun 29, 2016
Priority date	Mar 18, 2016
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

The application provides an oxide layer material capable of adsorbing and degrading methane gas, which is obtained by a method comprising the steps of: 1) subjecting a cracked household refuse to aerobic biological pretreatment; 2) subjecting the material which has been subjected to the aerobic biological pretreatment to biological stabilizing treatment; and 3) adding copper chloride, potassium sulfate, magnesium oxide, and a composite bacterial agent for oxidizing methane gas to the material which has been subjected to the biological stabilizing treatment to obtain the oxide layer material capable of adsorbing and degrading methane gas. This disclosure further discloses a method for preparing the oxide layer material capable of adsorbing and degrading methane gas described above.

First claim

What is claimed is:

1. A preparation method for an oxide layer material capable of adsorbing and degrading methane gas comprising the steps of:
1) subjecting a material comprising a cracked household refuse to aerobic biological pretreatment;
2) subjecting the material which has been subjected to the aerobic biological pretreatment to biological stabilizing treatment; and
3) adding copper chloride, potassium sulfate, magnesium oxide, and a composite bacterial agent for oxidizing methane gas including MIp1 ( Methylomonas ), MIp2 ( Methylococcus ), MIIO1 ( Methylocys - taceae ), and MIIO2 ( Methylocys - taceae ) to the material which has been subjected to the biological stabilizing treatment to obtain the oxide layer material capable of adsorbing and degrading methane gas.

2. The preparation method according to claim 1 , wherein the material which has been subjected to the aerobic biological pretreatment is screened before being subjected to the biological stabilizing treatment.

3. The preparation method according to claim 1 , wherein in the total materials of step 3, the addition amount of copper chloride is 3-6 mg per kg of the total materials, the addition amount of potassium sulfate is 0.01-0.06 g per kg of the total materials, the addition amount of magnesium oxide is 0.01-0.02 g per kg of the total materials, the volume ratio of MIp1:MIp2:MIIO1:MIIO2 in the composite bacterial agent for oxidizing methane gas is I-2:2-3:2-3:I-2, and the inoculation amount of the composite bacterial agent for oxidizing methane gas is 0.1-0.8% by mass fraction on a wet basis of the total materials.

Assignees

• Chinese Res Acad Env Sciences

Inventors

• Xi Beidou
• Zhu Chaowei
• Li Mingxiao
• Jiang Yonghai
• Hou Jiaqi
• Hao Yan
• Li Juan

Classifications

• B01D2253/112

  Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106 · CPC title

• B01D2258/02

  Other waste gases · CPC title

• B01D53/0407

  Constructional details of adsorbing systems · CPC title

• B01D2257/7025

  Methane · CPC title

• B01D2258/0283

  Flue gases · CPC title