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Modification method and application of sphagnum peat

A technology of peat and sphagnum, applied in chemical instruments and methods, bulk chemical production, biofuels, etc., can solve problems such as easy leakage, poor oil absorption capacity, and easy water staining of sphagnum peat, so as to achieve the goal of not easy to leak, The effect of reducing treatment costs and avoiding secondary pollution

Pending Publication Date: 2021-12-03
陕西环保产业研究院有限公司
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Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a modification method of sphagnum peat and its application, which solves the technical problems that sphagnum peat is easy to get water, poor oil absorption capacity, and easy to leak after oil absorption in the process of treating oil-polluted water bodies

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  • Modification method and application of sphagnum peat
  • Modification method and application of sphagnum peat
  • Modification method and application of sphagnum peat

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the embodiments of the present application. Apparently, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0037] Such as figure 1 As shown, the modification method of sphagnum peat provided in this embodiment includes steps S101-S103.

[0038] S101: Carrying out anaerobic carbonization of sphagnum peat at a temperature of 200-400° C. under nitrogen protection for 5-6 hours to obtain carbonized sphagnum peat. Wherein, the oxygen-free carbonization described in this embodiment is carried out in a muffle furnace.

[0039] In this example, the effect...

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Abstract

The invention discloses a modification method and application of sphagnum peat, and belongs to the technical field of sphagnum peat modification. The modification method comprises the following steps: performing anaerobic carbonization on the sphagnum peat for 5-6 hours at the temperature of 200-400 DEG C under the protection of nitrogen to obtain carbonized sphagnum peat; placing the carbonized sphagnum peat in supercritical carbon dioxide, and then pretreating for 30-60 minutes at the temperature of 32-45 DEG C and the pressure of 7.5-28 MPa to obtain pretreated carbonized sphagnum peat; and placing the pretreated carbonized sphagnum peat in a carbon dioxide gas atmosphere, and activating the material for 2 hours at the temperature of 120-150 DEG C to obtain the modified sphagnum peat. According to the modification method and application of the sphagnum peat, the hydrophobicity is increased while the oil absorbency of the sphagnum peat is improved; besides, no acid and / or alkali additive is added in the modification process, and secondary pollution of a water body can be effectively avoided.

Description

technical field [0001] The embodiment of the present application relates to the technical field of sphagnum peat modification, and in particular to a modification method of sphagnum peat and its application. Background technique [0002] With the development of the national economy, the current oil pollution of water bodies has become quite serious, which has brought serious harm to the ecological environment, plants and human health in the oil-polluted water body producing areas. Due to the high toxicity of oil-polluted water bodies and its extremely difficult to degrade, it is necessary to strengthen the advanced treatment of oil-polluted water bodies and the restoration of water bodies, and develop efficient and practical oil-polluted water body treatment technologies in a targeted manner. [0003] Adsorption is an effective and easy-to-operate method for treating water body oil pollution, and has been widely used in the treatment of water body oil pollution. Adsorbents ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/318C01B32/336C10B53/02
CPCC01B32/318C01B32/336C10B53/02Y02E50/10Y02P20/54
Inventor 惠海涛顾峰纪峰李永超王清艺杨雪婷付涛涛刘雨
Owner 陕西环保产业研究院有限公司
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