CN108889268A - 一种改性废弃水泥块在去除雨水中磷方面的应用 - Google Patents

一种改性废弃水泥块在去除雨水中磷方面的应用 Download PDF

Info

Publication number
CN108889268A
CN108889268A CN201810808502.5A CN201810808502A CN108889268A CN 108889268 A CN108889268 A CN 108889268A CN 201810808502 A CN201810808502 A CN 201810808502A CN 108889268 A CN108889268 A CN 108889268A
Authority
CN
China
Prior art keywords
cement block
phosphorus
waste water
1mol
modified abandoned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810808502.5A
Other languages
English (en)
Inventor
于江华
陶柄臣
黄啸谷
蔡昱
龚超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Information Science and Technology
Original Assignee
Nanjing University of Information Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University of Information Science and Technology filed Critical Nanjing University of Information Science and Technology
Priority to CN201810808502.5A priority Critical patent/CN108889268A/zh
Publication of CN108889268A publication Critical patent/CN108889268A/zh
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229—Compounds of Fe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0248—Compounds of B, Al, Ga, In, Tl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016—Particle form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4893—Residues derived from used synthetic products, e.g. rubber from used tyres
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water

Abstract

本发明公开了一种改性废弃水泥块在去除雨水中磷方面的应用，所述改性废弃水泥块由如下方法制备而成：在常温下，将1mol/L铁盐溶液和0.5mol/L铝盐溶液与1mol/L氢氧化钠溶液1:1:5.4混合，其中加入经过预处理的废弃水泥块，使混合液与砖块的固液比为1:3，并在常温下使用恒温振荡器进行混合，在4h后取出水泥块，放入烘箱干燥后使用马弗炉灼烧，取出，蒸馏水洗净。本方法实现了废弃水泥块的再利用，节约了大量可再生利用的资源并对雨水径流中的磷的吸附的同时也做到了保护环境，发展循环经济的特点。

Description

一种改性废弃水泥块在去除雨水中磷方面的应用
技术领域
本发明专利涉及一种改性废弃水泥块去除雨水中磷的方法，属于含磷污水的处理领域。
背景技术
城市非点源污染问题是伴随城市快速发展而出现的新问题，长期以来，农业非点源污染已经引起了广泛的重视，但是对城市非点源污染的研究相对较少.近年来，随着环保工作力度的不断加大，城市点源污染基本上已经得到了较好控制，非点源污染就成为了城市水质恶化的主要原因之一。而在多种非点源污染类型中，城市降雨径流是仅次于农业的非点源污染的第二大污染源。目前，城市水体面临的主要问题为富营养化，因而城市降雨径流中对水体影响最大、效果最为直观的为磷类化合物。如何处理径流中的磷成为了需要解决的问题。
同时，进入21世纪以来，我国基础设施建设事业得到了飞速发展。伴随着道路、桥梁、楼房的建设，产生了大量废弃水泥混凝土。据不完全统计，2018年我国建筑物拆除和施工过程中产生废混凝土总量达3.5亿t左右，预计到2020年我国将产生20亿t废弃水泥混凝土。目前，我国绝大部分废弃水泥混凝土是作为垃圾处理的，这不仅对环境造成了巨大影响，也浪费了大量可再生利用的资源。
随着人们保护环境、节约资源、发展循环经济意识的增强，再生集料的推广应用逐渐成为一种趋势。针对普通的硅酸盐水泥的主要化学成分为氧化钙、二氧化硅、三氧化二铁、三氧化二铝，本专利通过同时使用铁盐，铝盐对废弃水泥块的改性，制备新型的除磷材料，将再生集料的主要应用于路面基层、底基层或路基与园林绿化结构物填料中，对控制雨水径流中的磷污染与遏制城市水体富营养化具有重要意义。
发明内容
本发明旨在提供一种具有可以有效吸附雨水径流中的磷的改性废弃水泥块用于去磷。
本发明的上述目的是通过下面的技术方案得以实现的：
一种改性废弃水泥块在去除雨水中磷方面的应用，改性废弃水泥块由如下方法制备而成：
在常温下，将1mol/L铁盐溶液和0.5mol/L铝盐溶液与1mol/L氢氧化钠溶液1:1:5.4混合，其中加入经过预处理的废弃水泥块，使混合液与砖块的固液比为1:3，并在常温下使用恒温振荡器进行混合，在4h后取出水泥块，放入烘箱干燥后使用马弗炉灼烧，取出，蒸馏水洗净；
其中，废弃水泥块的预处理方法为：将回收的废弃砖水泥块进行粉碎研磨，过筛，选取0.5-1mm粒径的粉末，进行清洗，烘干，收集备用。
优选地，所述铁盐为三氯化铁。
优选地，所述铝盐为三氯化铝。
优选地，灼烧温度为600℃，灼烧时间为6h。
优选地，预处理方法中烘干温度为100℃。
有益效果：
(1)采用铁盐铝盐和氢氧化钠联合的方法改性的废弃水泥块，具有较好的除磷能力，其磷的吸附率由原来的未改性废弃水泥块的28％增加到63.36％，这一吸附效果远高于等量的废弃水泥块的吸附除磷量。
(2)本方法实现了废弃水泥块的再利用，节约了大量可再生利用的资源并对雨水径流中的磷的吸附的同时也做到了保护环境，发展循环经济的特点。
具体实施方式
下面结合实施例具体介绍本发明实质性内容，但并不以此限定本发明的保护范围。
实施例1
本发明改性废弃水泥块去除水中磷的方法，包括以下步骤：
1、废弃水泥块的预处理过程：
将回收的废弃水泥块块进行粉碎研磨，过筛，选取0.5-1mm粒径的粉末，进行清洗，在100℃下烘干，收集备用。
2、废弃水泥块改性过程：
在25℃下，将1mol/L铁盐溶液和0.75mol/L铝盐溶液与1mol/L氢氧化钠溶液1:1:5.4混合其中加入经过预处理的废弃水泥块，使混合液与砖块的固液比为1:3，并在常温下使用恒温振荡器进行混合，在4h后取出砖块，放入烘箱干燥后使用马弗炉在600℃下进行灼烧，灼烧6h后取出改性后的水泥块，用蒸馏水洗净后干燥收集备用。
3、改性后砖块除磷过程：
称取0.5g的上述改性废弃砖块加入浓度为5mg/L的50ml的含磷溶液中，溶液pH为7，在25℃下，以160r/min的速度进行恒温振荡。22h后过0.45μm滤膜，用钼锑抗比色法测滤液中磷的浓度，测得改性后水泥块对磷的吸附率为63.36％。
实施例2用0.5g废弃水泥块直接吸附
实施例3用0.1mol/L铁盐溶液和0.75mol/L铝盐溶液
实施例4用0.25mol/L铁盐溶液和0.75mol/L铝盐溶液改性
实施例5用0.75mol/L铁盐溶液和0.75mol/L铝盐溶液
实施例6用0.75mol/L铁盐溶液和0.5mol/L铝盐溶液
实施例7用0.75mol/L铁盐溶液和0.1mol/L铝盐溶液
实施例2中将0.5g废弃水泥块，加入浓度为5mg/L的50ml的含磷溶液，在25℃的温度下以转速160r/min的速度进行恒温振荡22h，后经过0.45μm滤膜进行过滤，测得水泥块对磷的吸附率为28％。在后续的试验中发现，该吸附在22h时达到平衡，即使时间增加，吸附量也没有很大变化。
由实施例1、2可以看出，改性废弃水泥块对水中磷的去除效果远远高于等量的废弃水泥块的吸附效果。
实施3、4、5仅改变了铁盐浓度其他步骤与实施1的相同，实施3、4、5最后得到吸附率为60％，61％，63.05％。
由实施例1、3、4、5可以看出，在吸附平衡时，铁盐的浓度越高，吸附率越高。
实施6、7仅改变了铝盐浓度其他步骤与实施1的相同，实施6、7最后得到吸附率为63.05％，63.29％，在吸附平衡时，铝盐的浓度越高，会提升吸附效果但效果不高。
上述实施例的作用在于具体介绍本发明的实质性内容，但本领域技术人员应当知道，不应将本发明的保护范围局限于该具体实施例。

Claims (5)

1.一种改性废弃水泥块在去除雨水中磷方面的应用，其特征在于，所述改性废弃水泥块由如下方法制备而成：
在常温下，将1mol/L铁盐溶液和0.5mol/L铝盐溶液与1mol/L氢氧化钠溶液1:1:5.4混合，其中加入经过预处理的废弃水泥块，使混合液与砖块的固液比为1:3，并在常温下使用恒温振荡器进行混合，在4h后取出水泥块，放入烘箱干燥后使用马弗炉灼烧，取出，蒸馏水洗净；
其中，废弃水泥块的预处理方法为：将回收的废弃砖水泥块进行粉碎研磨，过筛，选取0.5-1mm粒径的粉末，进行清洗，烘干，收集备用。
2.根据权利要求1所述的应用，其特征在于：所述铁盐为三氯化铁。
3.根据权利要求1所述的应用，其特征在于：所述铝盐为三氯化铝。
4.根据权利要求1所述的应用，其特征在于：灼烧温度为600℃，灼烧时间为6h。
5.根据权利要求1所述的应用，其特征在于：预处理方法中烘干温度为100℃。
CN201810808502.5A 2018-07-23 2018-07-23 一种改性废弃水泥块在去除雨水中磷方面的应用 Pending CN108889268A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810808502.5A CN108889268A (zh) 2018-07-23 2018-07-23 一种改性废弃水泥块在去除雨水中磷方面的应用

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810808502.5A CN108889268A (zh) 2018-07-23 2018-07-23 一种改性废弃水泥块在去除雨水中磷方面的应用

Publications (1)

Publication Number Publication Date
CN108889268A true CN108889268A (zh) 2018-11-27

Family

ID=64351411

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810808502.5A Pending CN108889268A (zh) 2018-07-23 2018-07-23 一种改性废弃水泥块在去除雨水中磷方面的应用

Country Status (1)

Country Link
CN (1) CN108889268A (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1443600A (zh) * 2002-03-12 2003-09-24 拜尔公司 吸附剂混合物
CN103145210A (zh) * 2013-03-25 2013-06-12 苏州绿世界园林发展有限公司 一种环保型污水脱氮除磷净化剂及其制备方法
CN103449559A (zh) * 2013-09-16 2013-12-18 中国科学院城市环境研究所 一种建筑废弃水泥砖作为除磷填料的方法及应用
CN106824050A (zh) * 2017-01-22 2017-06-13 西安建筑科技大学 一种除磷吸附剂的制备方法
CN107081122A (zh) * 2017-06-15 2017-08-22 兰州交通大学 利用给水污泥制备除磷剂的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1443600A (zh) * 2002-03-12 2003-09-24 拜尔公司 吸附剂混合物
CN103145210A (zh) * 2013-03-25 2013-06-12 苏州绿世界园林发展有限公司 一种环保型污水脱氮除磷净化剂及其制备方法
CN103449559A (zh) * 2013-09-16 2013-12-18 中国科学院城市环境研究所 一种建筑废弃水泥砖作为除磷填料的方法及应用
CN106824050A (zh) * 2017-01-22 2017-06-13 西安建筑科技大学 一种除磷吸附剂的制备方法
CN107081122A (zh) * 2017-06-15 2017-08-22 兰州交通大学 利用给水污泥制备除磷剂的方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
李星: "铁铝复合吸附剂去除水中痕量磷效能及机理", 《北京工业大学学报》 *
杨春平 等: "《废水处理原理》", 31 December 2012 *
王艳萍: "水化水泥颗粒吸附P4O3-的影响因素及脱附再生研究", 《西安建筑科技大学学位论文》 *

Similar Documents

Publication Publication Date Title
CN106365281B (zh) 一种水体除磷剂的制备方法及水体除磷方法
CN105693124B (zh) 用于混凝土内养护的再生细集料的制备方法及使用方法
CN108249713A (zh) 一种河湖淤泥资源化利用方法
CN108160684B (zh) 一种铬污染土的联合修复方法
CN105727881A (zh) 一种碱改性凹凸棒土吸附剂及其制备方法
CN109516707A (zh) 一种抑制碱-骨料反应的再生骨料的制备方法
CN102962247B (zh) 一种铜镉复合污染土壤的物化修复方法
CN109928591A (zh) 基于废弃物资源化的污泥固化剂及污泥处理方法
CN106007563A (zh) 一种利用废弃混凝土制备的生态环保型透水混凝土
CN109956690A (zh) 一种用于水泥工业的生活垃圾焚烧飞灰处理方法
CN107399936A (zh) 一种用于水质净化的污泥生物炭透水砖的制备方法
CN108069703A (zh) 一种截污型透水砖及其制备方法
CN104072026B (zh) 一种利用陶瓷废料的道路铺筑材料及其制备方法
CN110078451A (zh) 一种具有净水功能的固废基透水混凝土
CN107540041A (zh) 废弃混凝土在水体除氟中的应用
CN105801007B (zh) 水洗预处理生活垃圾焚烧飞灰在路面中的清洁应用
CN102584056A (zh) 一种膨润土类防渗材料的制备方法
Fan et al. New applications of municipal solid waste incineration bottom ash (MSWIBA) and calcined clay in construction: Preparation and use of an eco-friendly artificial aggregate
CN110526647A (zh) 一种底泥干化固结剂及其制备方法
CN101704650B (zh) 增钙干化污泥渣的资源化利用方法
CN108889268A (zh) 一种改性废弃水泥块在去除雨水中磷方面的应用
CN108380190A (zh) 一种新型重金属吸附剂
CN101670264A (zh) 免烧法制备的脱硫灰渣废水除磷材料及制备方法
CN107880894A (zh) 一种镉铅污染土壤修复材料的制备方法及应用
CN106140095A (zh) 含松香基三元菲环结构的氧化叔胺改性凹凸棒土吸附剂的改性制备及应用

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20181127