Membrane filtration with rapid pretreatment using adsorbent of submicron particle size

使用亚微米粒径吸附剂进行快速预处理的膜过滤

基本信息

批准号：
17360255
负责人：
MATSUI Yoshihiko
金额：
$ 7.62万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360255/
关键词：
adsorption powdered activated carbon MF membrane membrane separation drinking water treatment

项目摘要

Normal manufacturer-supplied powdered activated carbon (PAC) was pulverized to reduce the PAC particle size to less than 1 μm; we call the pulverized PAC super-powdered activated carbon (S-PAC). Advantages of S-PAC over normal PAC, mainly in terms of adsorptive removal of natural organic matter (NOM) and geosmin (musty-earthy taste and odor compund), were studied. Batch adsorption kinetic tests and tubular flow reactor tests revealed that S-PAC rapidly adsorbed NOM from water samples. NOM concentration rapidly decreased after S-PAC addition and reached a plateau of practically attainable removal in a contact time of 5 s. Next, S-PAC adsorption as a pretreatment for microfiltration (MF) was studied by using laboratory-scale and bench-scale pilot plants. Use of S-PAC could decrease significantly the detention time for adsorption pretreatment before MF. A detention time of 2.4 s yielded the same NOM concentration in the MF permeate as a detention of 15 min. Use of S-PAC could also decrease the dosage compared with normal PAC by a factor of 1/4. The dosing sequence, PAC followed by coagulant and then MF, showed slightly better NOM removal than the sequence, coagulant followed by PAC and then MF, suggesting that flocculation of PAC particles somewhat hinders adsorbate uptake into PAC particles. Adsorption pretreatment by using this S-PAC removed the geosmin with vastly greater efficiency than by normal PAC. Removal was attained in a much shorter contact time and at a much lower dosage. The S-PAC was also beneficial in attenuating the trans-membrane pressure rises that occurred between both physical backwashings and chemical cleanings. No membrane fouling effect was observed as a result of S-PAC addition before MF.

将正常的制造商粉状粉末激活碳（PAC）粉碎，以将PAC粒径降低到小于1μm。我们称为粉碎的PAC超级加活性碳（S-PAC）。 S-PAC比正常PAC的优势主要是在吸附性去除天然有机物（NOM）和Geosmin（Musty-Earthy味道和异味）方面是研究的。批处理吸附动力学测试和管状流动反应器测试表明，S-PAC迅速从水上样品中装饰NOM。 S-PAC添加后，提名浓度迅速降低，并在5 s的接触时间中达到了几乎可实现的去除量。接下来，使用实验室规模和台式试验工厂进行了研究，S-PAC加热是微滤（MF）的预处理（MF）。 S-PAC的使用可能会显着减少MF之前的添加预测时间。 2.4 s的拘留时间在MF渗透中产生的NOM浓度与15分钟的拘留相同。与正常PAC相比，S-PAC的使用也可能降低剂量1/4。剂量序列是PAC，然后是凝结剂，然后是MF，表现出比序列，凝结剂，然后是PAC，然后是MF稍好，这表明PAC颗粒的片段化有些阻碍吸附到PAC颗粒中。通过使用此S-PAC的吸附预处理以比正常PAC更高的效率去除地球素。在短得多的接触时间和较低的剂量下，取消拆除。 S-PAC也有益于衰减物理反冲洗和化学清洁之间发生的跨膜压力上升。由于MF之前的S-PAC添加，未观察到膜结垢效应。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Adsorptive removal of geosmin by ceramic membrane filtration with super-powdered activated carbon adsorption

超粉活性炭吸附陶瓷膜过滤吸附去除土臭素

DOI：
发表时间：
2006
期刊：
Proc. 7th International Symposium on Water Supply Technology 2006
影响因子：
0
作者：
Matsui;Y.;Aizawa;T.;Suzuki;M.;Kawase;Y.
通讯作者：
Y.

Rapid Adsorption Pretreatment with Submicron Powdered Activated Carbon Particles before Microfiltration.

微滤前用亚微米粉状活性炭颗粒进行快速吸附预处理。

DOI：
发表时间：
2005
期刊：
Water Sci. ＆ Tech. 51
影响因子：
0
作者：
Matsui;Y.;Kurihara;S.;Sanogawa;T.;Murai;K.;Sawaoka;D.;Ohno;K.;Yoshihiko Matsui et al.;Yoshihiko Matsui et al.
通讯作者：
Yoshihiko Matsui et al.

Ceramic MF with Submicron-sized Activated Carbon Adsorption and Coagulation Pretreatments for Rapid and Effective NOM Removal.

陶瓷 MF 具有亚微米级活性炭吸附和混凝预处理，可快速有效地去除 NOM。

DOI：
发表时间：
2005
期刊：
Water and Environmental Management Series (WEMS), 2nd IWA Leading-Edge on Water and Wastewater Treatment Technologies, 8
影响因子：
0
作者：
Matsui;Y.;Kurihara;S.;Sanogawa;T.;Murai;K.;Sawaoka;D.;Ohno;K.;Yoshihiko Matsui et al.;Yoshihiko Matsui et al.;Yoshihiko Matsui et al.
通讯作者：
Yoshihiko Matsui et al.

Evaluating submicron-sized activated carbon adsorption for microfiltration pretreatment