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Preparation method of hydraulic engineering construction material

A technology for water conservancy engineering and aggregates, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. Simple preparation method and good water purification effect

Inactive Publication Date: 2017-12-12
BEIJING RONGDISHENG ENVIRONMENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The principle of the biofilm method is that the biofilm first adsorbs organic matter attached to the water layer, and is decomposed by the aerobic bacteria in the aerobic layer, and then enters the anaerobic layer for anaerobic decomposition, and the flowing water layer washes away the aged biofilm to Growth of new biofilm, and so on to achieve the purpose of purifying sewage, but this method requires highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa and algae to fully filter the sewage, and its operating cost very high
[0005] However, the above methods all have high infrastructure and operating costs, cumbersome treatment processes, and unstable effluent quality.

Method used

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  • Preparation method of hydraulic engineering construction material

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Embodiment 1

[0035] A method for preparing construction materials for water conservancy projects, characterized in that the method comprises the following steps:

[0036] Step 1: crushing and sieving of aggregate

[0037] First, classify construction waste aggregates to produce aggregate particles with a particle size of less than 80mm;

[0038] Step 2, the preparation of the first aggregate particles

[0039] Selecting aggregate particles with a particle size less than 0.1mm in step 1 to make the first aggregate particles with a particle size of 100-300 μm;

[0040] Step 3, the preparation of the second aggregate particles

[0041] Selecting aggregate particles with a particle size of 0.1-5mm in step 1 to make second aggregate particles with a particle size of 0.1-2mm;

[0042] Step 4. Preparation of film-coated aggregate

[0043] Mix the first aggregate particles obtained in step 2 and the second aggregate particles obtained in step 3 at a mass ratio of 1-2:5-10 to obtain a mixed agg...

Embodiment 2

[0060] On the basis of embodiment 1, further optimization obtains embodiment 2, specifically as follows:

[0061] A method for preparing construction materials for water conservancy projects, characterized in that the method comprises the following steps:

[0062] Step 1: crushing and sieving of aggregate

[0063] First, sort the construction waste aggregates to remove metal and wood impurities, and use a crusher to crush the construction waste aggregates, and crush the aggregates so that the particle size is less than 80mm, where the particle size is 0.1mm and the particle size is 0.1- The ratio of 80mm is 1-5:20-40, drying to make the water absorption rate lower than 5%, the aggregate is sieved, and the aggregate particles with a particle size of 0.1-5mm and the aggregate with a particle size of less than 0.1mm Particles are screened and taken out for use;

[0064] Step 2, the preparation of the first aggregate particles

[0065] a) Mix and stir aggregate particles with a...

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Abstract

The invention discloses a preparation method of a hydraulic engineering construction material. Aggregate particles and polymers are prepared by optimizing construction waste aggregate, and the aggregate in construction waste is provided with a microorganism layer capable of water purification, so that the material has a good water purification effect.

Description

technical field [0001] The invention relates to a preparation method of water conservancy project construction materials. Background technique [0002] At present, my country's urban sewage is mainly treated through the construction of sewage treatment plants. There are many kinds of water treatment processes in my country, but they are mainly industrial equipment types with high operating costs, and there is great resistance to popularization in our country. [0003] At present, the methods for improving and purifying water mainly include physical methods, chemical methods and biological treatment methods. The physical method is to remove impurities such as suspended organic matter in water through filtration, precipitation, and adsorption. This method has little secondary pollution to the water body, but a large waste of resources; sedimentation and adsorption can only sink the suspended organic matter in the water to the bottom of the pool, but cannot take it out of the...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/10C02F3/28
CPCC02F3/105C02F3/2806C02F3/341Y02W10/10
Inventor 张博鑫
Owner BEIJING RONGDISHENG ENVIRONMENT TECH
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