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.

普通制造商提供的粉末活性炭（PAC）经过粉碎，将PAC粒径减小到1μm以下；我们将粉碎的PAC称为超粉活性炭（S-PAC），S-PAC相对于普通PAC的优点主要是。在吸附去除天然有机物（NOM）和土臭素（霉土味和气味化合物）方面，进行了批量吸附动力学测试和管式流动。反应器测试表明，S-PAC 快速吸附水样中的 NOM，添加 S-PAC 后，NOM 浓度迅速下降，并在 5 秒的接触时间内达到几乎可去除的水平。接下来，S-PAC 吸附作为微滤的预处理。 (MF) 通过使用实验室规模和实验室规模的中试装置进行了研究，使用 S-PAC 可以显着缩短 MF 之前吸附预处理的停留时间，2.4 秒的停留时间可产生相同的 NOM 浓度。在 MF 渗透液中，与普通 PAC 相比，使用 S-PAC 可以将剂量减少 1/4。添加顺序为 PAC，然后是凝结剂，然后是 MF，NOM 去除效果稍好。与顺序相比，先是混凝剂，然后是 PAC，然后是 MF，表明 PAC 颗粒的絮凝在一定程度上阻碍了 PAC 颗粒对吸附物的吸收，通过使用这种 S-PAC 进行吸附预处理，去除了吸附剂。与普通 PAC 相比，S-PAC 可以在更短的接触时间和更低的剂量下实现土臭素的去除，并且有利于减轻物理反洗和化学清洗之间发生的跨膜压力升高。由于在 MF 之前添加 S-PAC，没有观察到膜污染效应。

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