A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the field of concrete preparation, and particularly discloses a method for preparing concrete by using concrete wastewater, which comprises the following steps: S1, filtering and separating the concrete wastewater to obtain to-be-treated filtrate and filter residues; S2, subjecting the filtrate to be treated to chloride ion desorption treatment to obtain recycled filtrate subjected to chloride ion desorption; S3, uniformly re-mixing the reuse filtrate after the chloride ions are desorbed with the filter residues to obtain mixing reuse water; and S4, mixing the mixing reuse water, clear water, cement, mineral powder, fly ash, coarse aggregate, fine aggregate and a water reducing agent according to a proportion to obtain the concrete. The method has the effects of improving the capability of removing chloride ions in the wastewater and reducing the situation that the concentration of the chloride ions is too high to limit the use of the wastewater.
本申请涉及混凝土制备的领域，具体公开了一种利用混凝土废水制备混凝土的方法，包括以下步骤：S1：对混凝土废水进行过滤分离，得到待处理滤液和滤渣；S2：对待处理滤液进行氯离子脱附处理，得到脱附氯离子后的回用滤液；S3：将脱附氯离子后的回用滤液与滤渣重新混合均匀后，得到拌制回用水；S4：按以下比例将拌制回用水、清水、水泥、矿粉、粉煤灰、粗骨料、细骨料以及减水剂进行拌制，得到混凝土。本申请具有提高对废水中氯离子去除能力，降低氯离子浓度过高限制废水使用的效果。
The invention relates to the field of concrete preparation, and particularly discloses a method for preparing concrete by using concrete wastewater, which comprises the following steps: S1, filtering and separating the concrete wastewater to obtain to-be-treated filtrate and filter residues; S2, subjecting the filtrate to be treated to chloride ion desorption treatment to obtain recycled filtrate subjected to chloride ion desorption; S3, uniformly re-mixing the reuse filtrate after the chloride ions are desorbed with the filter residues to obtain mixing reuse water; and S4, mixing the mixing reuse water, clear water, cement, mineral powder, fly ash, coarse aggregate, fine aggregate and a water reducing agent according to a proportion to obtain the concrete. The method has the effects of improving the capability of removing chloride ions in the wastewater and reducing the situation that the concentration of the chloride ions is too high to limit the use of the wastewater.
本申请涉及混凝土制备的领域，具体公开了一种利用混凝土废水制备混凝土的方法，包括以下步骤：S1：对混凝土废水进行过滤分离，得到待处理滤液和滤渣；S2：对待处理滤液进行氯离子脱附处理，得到脱附氯离子后的回用滤液；S3：将脱附氯离子后的回用滤液与滤渣重新混合均匀后，得到拌制回用水；S4：按以下比例将拌制回用水、清水、水泥、矿粉、粉煤灰、粗骨料、细骨料以及减水剂进行拌制，得到混凝土。本申请具有提高对废水中氯离子去除能力，降低氯离子浓度过高限制废水使用的效果。
Method for preparing concrete from concrete wastewater
一种利用混凝土废水制备混凝土的方法
HU FUHUA (author)
2021-11-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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