By-product ceramsite based on sludge treatment by plants as well as preparation method and application of by-product ceramsite

A ceramsite and sludge technology, applied in the field of water pollution control, can solve problems such as few reports, and achieve the effects of porous internal structure, good ventilation effect and simple preparation process
CN112624792AActive Publication Date: 2021-04-09PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
12 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
Publication Date
2021-04-09

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of water pollution treatment, and discloses by-product ceramsite based on sludge treatment by plants as well as a preparation method and application of the by-product ceramsite, and the ceramsite comprises the following components in percentage by mass: 30-50% of fly ash, 5-10% of biochar, 20-30% of bentonite, 10-30% of magnesium carbonate, 5-10% of sodium silicate and 2-5% of silicon dioxide. The preparation method comprises the following steps: S101, preparing biochar; S102, preparing a green ball material; S103, conducting drying; and S104, conducting calcining. A mixture of sludge after plant treatment and pennisetum hydridum residues is used as a raw material to prepare biochar, fly ash, bentonite, quick lime and other materials are mixed into the biochar, and the formed mixture is subjected to high-temperature pyrolysis according to a certain mass ratio to prepare the ceramsite. The ceramsite capable of adsorbing nitrogen and phosphorus in water can be produced while maximum resource utilization of dried sludge and by-products of planted plant products is achieved, and the ceramsite can be applied to a eutrophic water body purification treatment system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of water pollution control, in particular to ceramsite, a by-product of plant-based sludge treatment, and a preparation method and application thereof. Background technique

[0002] Sludge treatment is an important part of water pollution control and water environment protection. If sludge is not properly disposed of, it will not only have a negative impact on the ecological environment, but also endanger people's health. The main disposal methods of sludge at home and abroad are agricultural and forestry utilization. , sanitary landfill, incineration, etc. Sludge is directly incinerated. Due to the high moisture content of fresh sludge, additional fuel is required and the cost is high. The sanitary landfill of sludge occupies a huge area and is currently banned in many places. In the long run, the agricultural and forestry resource utilization of sludge is a promising and popular treatment method. [0003...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More