1. May 2021: Participated in a program. Academically, I call this a Solid Waste Management field trip.
2. May 2021: Received a for my 25 years of service from Penn State President Eric Barron, and a .
3. May 2021: Congratulations to Jorge Pividal for getting his Master’s degree from Penn State. He is celebrating on Water Doc Lane.
4. April 2021: I am truly honored by the Penn State Physical Plant’s proposal, an honorary road “Xie Lane”, as a recognition of my 20+ years contributions to water and wastewater management at Penn State. I am also glad that University adopted my alternative proposal “Water Doc Lane” to recognize contributions from all water professionals.
1. December 2020: Walk the talk. I had a great time teaching the course Sustainable Engineering. I also completed several backyard projects (e.g., , , and ) this year.
2. April 2020: A co-authored paper “The importance of system configuration for distributed direct potable water reuse” has been published in Nature Sustainability. It is a great experience to collaborate with colleagues at Rice University.
1. October 2019: Got reappointed to the US EPA Science Advisory Board’s Drinking Water Committee.
2. September 2019: Got appointed as a Distinguished Visiting Professor in School of Environment at Tsinghua University.
3. September 2019: Visited Department of Civil and Environmental Engineering at University of Massachusetts at Amherst and gave a presentation on our research on the environmental impacts of shale gas drilling. Thanks go to my postdoctoral advisor, Professor David Reckhow, for hosting this trip. More importantly, I found a chemical bottle opened on December 30, 1992, which substantially boosted my bragging on how hard I worked as a postdoc.
4. August 2019: Officially, I am back from my sabbatical.
5. July 2019: Attended the 11th International Symposium on Water Supply Technology in Yokohama, Japan and gave a presentation “Impacts of Shale Gas Production Wastewater on Disinfection Byproduct Formation and a Potential Solution”.
6. July 2019: Attended the WEF-EESS Conference on Advancement in Water and Wastewater Treatment and Reuse in Singapore and gave a keynote presentation “Effects of Backwashing on the Performance of Biologically Active Carbon
8. June 2019: Attended 2019 Chinese Environmental Scholars Forum at Rice University and gave two invited presentations “Impacts of Shale Gas Production Wastewater on Disinfection Byproduct Formation and a Potential Solution” and “Global Talent Flow and Academic Employment in Environmental Engineering & Science”.
9. May 2019: Chaired the 3rd China Day Celebrating Chinese Heritage and Community Services in Pennsylvania State Capitol. The event is sponsored by Governor Tom Wolf's Advisory Commission on Asian Pacific American Affairs.
10. May 2019: I am truly honored by the Lifetime Achievement Award from Chinese-American Professors in Environmental Engineering and Science (CAPEES). I want to thank my colleagues for their nomination and support.
11. May 2019: Attended the 2019 Drinking Water Congress in Yiwu, China, gave an invited presentation “Challenges and Solutions for Safe Drinking Water in China” and chaired a panel discussion.
12. April 2019: Visited Department of Civil and Environmental Engineering at Princeton University and gave a presentation on our research on the environmental impacts of shale gas drilling. Thanks go to Professor Jason Ren for hosting this trip.
13. March 2019: Tatiana Dominguez and Gaoming Zhou presented their research at the 2018 Penn State Graduate Exhibition at University Park.
14. March 2019: Attended the 3rd Wastewater Treatment and Reuse Conference, Guangzhou, China, and gave a keynote presentation “US Reclaimed Water Disinfection Requirements and Technologies".
15. February 2019: Visited Department of Civil, Environmental and Geodetic Engineering at Ohio State and gave a presentation on our research on the environmental impacts of shale gas drilling. Thanks go to Professor Linda Weavers for hosting this trip.
16. December 2018: Gave a two-week short course “Advances in Drinking Water Treatment” to graduate students in School of Human Settlements and Civil Engineering at Xi’an Jiaotong University. Thanks go to Professor Wendong Wang for hosting this trip.
17. November2018： Attended the Thirteenth International Conference on China Urban Water Development, Chongqing, China, and gave an invited talk "Removal of Disinfection Byproducts using Biologically Active Carbon”.
18. Gave a presentation at the 2019 Advanced Drinking Water Treatment Conference in Zhenzhou, China. I was also elected as the Chair of the Chinese Advanced Drinking Water Treatment Society. As a PhD candidate, I did most of the legwork with the Founding Chair and my PhD advisor, Professor Zhangsheng Wang, to get this society started in 1989.
19. June 2018: Congratulations to Linlin Tang for receiving the 2018 Student Research Award at the PWEA 90th Annual Technical Conference.
20. May 2018: Attended the 2nd Disinfection and Disinfection By-Products Conference, International Water Association, Beijing, and gave an plenary talk "Impact Assessment and Control of Natural Gas Production Wastewater on Disinfection Byproduct Formation". I also chaired the opening session.
21. April 2018: Congratulations to Kuang Huang and Linlin Tang for receiving the 1st place and 2nd place University Libraries Awards for Information Literacy at Penn State Harrisburg, respectively.
23. March 2018: Kuan Huang and Linlin Tang presented their research at the 2018 Penn State Graduate Exhibition at University Park on March 25th.
24. March 2018: Congratulations to David Evans, Kuang Huang and Linlin Tang for passing their graduate thesis defenses. Great Job!
25. March 2018: Attended ACS National Meeting in New Orleans and gave a presentation “Charactrization of nine haloacetaldehyde formation during chlorination of bromide-containing water”. I also co-authored two more presentations at this conference “Formation of bromated halonitromethanes from organic amines during ozonation” and “Impact of chitosan and polyacrylamide on formation of carbonaceous and nitrogenous disinfection by-products”.
26. December 2017: Visited National Taiwan University with Professor Ching-hua Huang from Georgia Tech. Thanks go to Professor Gen-shuh Wang for organizing these seminars and professional workshops. It was also nice to meet many professors in Environmental Engineering Institute at NTU and Professor Hsin-hsin Tung (second from the left), with whom I had the pleasure of working over a few years at Penn State.
27. November 2017: Kodi presented a poster “Disinfection Byproduct Monitoring and Removal at a Small Non-continuously Operated Water Treatment Plant” at AWWA Water Quality Technology Conference in Portland, OR. Congratulations on her third place award!
28. June 2017: Congratulations to Zhangxin Wang at Vanderbilt University and Qinmin Zheng at the George Washington University for the 2017 CAPEES Founding President Best Paper Awards. Thanks also go to my wife, Janet Ai, for supporting the awards.
29. June 2017: Attended the 2017 AEESP Research and Education Conference at University of Michigan. Kuan presented a poster “Effects of Metal Ions on Disinfection Byproduct Formation during Water Chlorination”
30. June 2017: Attended the AWWA Annual Conference in Philadelphia, PA, with four graduate students and one visiting scholar, and took a photo with AWWA President Brenda Lennox. Congratulations to Anil for receiving the travel award for this conference.
31. April 2017: Took 20 students to the PA AWWA conference in Hershey, PA. Anil and Kuan gave poster presentations and Anil received the third place poster award. Our Water Tank Building team ranked second in the contest. So the professor can build real stuff, too.
32. March 2017: Visited two water treatment plants with students. Thanks go to my colleagues with these water utilities, Columbia Water Company and PA American Hershey Plant, for their continuous support.
33. February 2017: Thank Education Counsellor Yongji Xu and Vice Consul Qi Li from the Chinese Consulate-General in New York for attending the Lunar New Year celebration party at Penn State Harrisburg campus. This is a great support to our students and faculty.
34. February 2017: Visited Halifax, Canada, as a Site Visit Committee member to evaluate an NSERC Senior Industrial Chair application. Halifax is a beautiful city and hope that NSERC schedules future Halifax trips in summer or fall.
35. January 2017: Did kayaking on the New Year’s Day. It is too warm to go skiing.
38. November 2016: Thank my former Tsinghua classmate, Penn State purchased a used gas chromatograph (with a purge and trap autosampler) for $1, plus a dissolved air flotation jar tester. It is wonderful to have many friends with water utilities.
39. September 2016: Gave a seminar on Disinfection Byproducts at Temple University. I am really impressed by the excellent analytical facilities for the Environmental Engineering group. By the way, Penn State and Temple are two of four state-related public universities in Pennsylvania.
41. August 2016: It is official. Four programs, Chemical Engineering, Environmental Engineering, Mechanical Engineering, and Water Supply and Wastewater Engineering programs, at Tsinghua University received official accreditations from the ABET. I am glad to serve as an advisor for Tsinghua University in support the ABET accreditation.
42. August 2016: Who said that you don’t get rich by writing technical books? I just received a letter from ACS. I got a big check with 13 nines from one of my ACS DBP books. I really appreciate ACS’s efforts in helping me to lower my tax bill by using nines, not zeros (The tax rate for $43900 trillion or above is 99% versus a regular rate). In case you can not reach me in my office, I may be enjoying my retirement somewhere else. It is also the time for me to check the royalty of my CRC DBP book.
43. August 2016: Visited Great Sand Dunes National Park and Preserve and Rocky Mountain National Park in Colorado. “With water you are beaches, without water you are just dunes!” (有水你是沙滩，没水你只是个丘！) . A quote from Dr. Water.
45. May 2016: I have been appointed as a member of the US EPA Science Advisory Board’s Drinking Water Committee by EPA Administrator Gina McCarthy. The Drinking Water Committee provides advice to the EPA Administrator, through the chartered Science Advisory Board, on the technical aspects of EPA’s national drinking water standards program.
46. May 2016: Just received a hard copy of our book “Recent Advances in Disinfection By-Products” (Editors: , , , and by mail at home. It looks great!
47. April 2016: We had a successful panel discussion “Lead in the Water: Flint, MI and Beyond”. I want to thank panel members Rodney Nesmith with PA Department of Environmental Protection, with PA Department of Health, and Dr. Beverly Cigler, distinguished professor emerita at PSU, for their great contributions.
48. March 2016: I was saddened by the news that two Penn State professors were forced off their planes last year due to misunderstanding with crew members. As the recipient of the 2014 Penn State University Faculty Outreach Award, I reached out to the flight crew during my flight to Beijing, China. I also like to take this opportunity to thank my colleagues who supported me for this award.
49. February 2016: Gave a lecture “Water Disinfection and Disinfection Byproducts” (VCASE Lecture Series) for graduate and undergraduate students in the Department of Civil and Environmental Engineering (CEE) at Villanova University. This is a beautiful campus.
2. December 2015: Sylvia Yu received her Master’s degree in Environmental Engineering. Congratulations!
3. November 2015: Served on two PhD defense Committees at Autonomous University of Barcelona, Spain. Although my Spanish language skill is very limited, I had a great time in this beautiful and friendly city.
4. October 2015: Gave a presentation, DBP Removal and Control in Distribution Systems, at the AWWA Water System Optimization Conference, Hershey, PA.
5. September 2015: Our book, Recent Advances in Disinfection By-Products (Editors: , , , and , has been published by American Chemical Society.
6. September, Sylvia Yu, a graduate student in our group, presented a poster “Pilot Plant as a Learning Tool – a Filter Plant Performance Optimization” in the New England Graduate Student Water Symposium at University of Massachusetts, Amherst, MA.
7. September 2015: The United States, China, and many other countries are celebrating the 70th anniversary of World War II's end. Last year, I had a dinner meeting in the Flying Tigers House, Kunming, China. “Flying Tigers”, a group of volunteer fighter pilots who fought the Japanese in China the year before the U.S. declared war on Japan, was founded and commanded by Claire Lee Chennault. It was their stories that inspired me to become a pilot.
8. August 2015: Dr. Huixue Ren, Associate Professor, from School of Municipal and Environmental Engineering at Shandong Jianzhu University, started his six-month visit in our group.
9. August 2015: Attended the inaugural North American Tsinghua Alumni Conference in New York City. Chair Chen from Tsinghua University in Beijing and President Chenhong from Tsinghua University in Taiwan (National Tsing Hua University) spoke at the conference. I gave a presentation “Drinking Water Quality & Treatment in US & China” at the Environment Forum.
10. August 2015: Kayaking with Professor Wang (National Taiwan University) and Professor Shang (Hong Kong University of Science and Technology) during the canoe/kayak trip at the 2015 Gordon Research Conference: Drinking Water Disinfection Byproducts. Gordon Research Conference, by invitation only, provides a great opportunity to network with your peers. I was a conference Discussion Leader.
11. July 2015: Chaired the 2nd National Disinfection Byproduct Conference at Tsinghua University, Beijing, China. Thank Professors Chao Chen and Hongwei Yang at Tsinghua for their hard work in organizing this great event.
12. June 2015: Attended the 12th IWA Leading Edge Conference on Water and Wastewater in Hong Kong. Travelled there together with Professor Yi Qian (钱易) a member of Chinese National Academy of Engineering. Here is another photo with Professor Qian took 20 years ago.
13. May 2015: Congratulates to all graduate students and undergraduate students who graduated this semester. Three students in our groups who received their graduate degrees are Tim Lester, Vince Pascucci, Qianwen (Maggie) Zhang. Congratulations!
14. April 2015: Attended the PA AWWA Conference with 15 students. I gave a presentation on Forward Osmosis. Tim Lester, one of my graduate students, gave a poster presentation on Ballast Water Treatment and got the third place award. Members of our newly established AWWA Student Chapter attended this conference and had a photo op with the AWWA past president, James Chaffee, incoming president, Gene Koontz, and PA section chair, George Hart.
15. March 2015: Attended the talk “Universities and the Challenge of Climate Change” presented by Dr. Drew Gilpin Faust, President of Harvard University, at Tsinghua University. She mentioned two alumni of Harvard and Tsinghua, President Obama from Harvard Law School and President Xi from Tsinghua Chemical Engineering Department, and their efforts and efforts from both universities in compacting climate change. By the way, I entered the Department right after President Xi graduated from the Department.
17. February 2015: This has been a very cold February. I took students to several local water and wastewater water treatment plants (Plant 1, Plant 2, Plant 3). Many thanks to staff in these plants for these excellent tours.
18. January 2015: Dr. Kefeng Zhang, Dean of School of Municipal and Environmental Engineering at Shandong Jianzhu University, is visiting Penn State. He gave a guest lecture “Flotation/sedimentation and floatation/filtration and their applications in drinking water treatment” at Penn State Harrisburg and visited the wastewater treatment plant at Penn State University Park.
1. December 2014: It is the time for the family. It is also the time to immerse myself in water (snorkeling with my daughter).
2. November 2014: Attended the 9th International Conference on China Urban Water Development and Expo of New Technologies and Facilities and gave an invited presentation “Rapid Sand Filter Operation and Management”.
3. November 2014: Visited Guangxi Universities and gave a presentation on water disinfection and disinfection byproducts. I had a bicycle tour of the beautiful campus with a group of graduate students.
4. October 2014: Presented a seminar “Formation and Control of Disinfection Byproducts” for graduate students in the department of civil and environmental engineering (CEE) at Lehigh University. I visited Lehigh several time before. This time, a graduate student gave me a tour of this beautiful campus (photos of the Church and Library).
5. October 2014: Our inaugural US-China Drinking Water Symposium at Penn State Harrisburg campus was a great success. Here is a group photo for all speakers and attendees.
7. August 2014: It is great to get involved with the ACS symposium “Thermodynamics and Kinetics in Treatment Processes, Past, Present, and Future: Symposium in Honor of Professor Chin-Pao Huang”. CAPEES is a proud sponsor of the dinner event after the symposium.
8. August 2014: Our 4-day symposium “Occurrence, Formation, Health Effects, and Control of Disinfection By-Products (DBPs)” at ACS in San Francisco was a great success. We are in the process to put together a new DBP book based on this symposium. Here is our last DBP book.
9. July 2014: Weekend Canoeing with Professor Jiane Zuo, Associate Dean of School of Environment at Tsinghua University, and Professor Shuming Liu, Assistant Dean on Swatara Creek. We visited Hershey Food and discussed potential research collaborations between Hershey Food and Tsinghua.
10. June 2014: I have been appointed as one of three advisors to Tsinghua University to assist Tsinghua in applying for ABET Accreditation. I was at the official kickoff meeting with Tsinghua President, Dr. Jining Chen and Vice-Provost, Dr. Li Zheng.
11. May 2014: Just came back from the PA AWWA Annual Conference with my colleague, Mitch Spear, and 10 students. We had a wonderful time there. I also received the 2014 Victor A. Appleyard Award from the Section. The award recognizes outstanding achievement in membership recruiting. It is always my pleasure to introduce my students to this wonderful professional organization!
12. March 2014: Thank my colleagues at Penn State, I received the 2014 Penn State University Faculty Outreach Award. The award was presented by Penn State President, Dr. Rodney Erickson, and Vice President, Dr. Craig Weidemann, at University Faculty and Staff Awards Luncheon in State College on March 24, 2014. The award honors Penn State faculty who have positively and substantially affected individuals, organizations or communities through problem solving or development as a result of extending their scholarship. I would like to take this opportunity to thank colleagues and friends for their contributions to this Outreach Award, especially those in United States, Canada, Singapore and China.
13. February 2014: I received the 2014 Excellence in Teaching Award from School of Environment at Tsinghua University. I want to thank my colleagues and students at Tsinghua University for this award.
14. January 2014: Happy New Year! 新年好！¡Feliz Año Nuevo! Bonne année!
1. December 2013: Professors Tanju Karanfil (Clemson), Bill Mitch (Stanford), Paul Westerhoff (Arizona State), and I are organizing the traditional DBP Symposium at the 2014 ACS Annual Summer Meeting in San Francisco. Here is the Call for Papers.
2. November 2013: During the Thanksgiving Break, I visited Saguaro National Park, Coconino National Forest, Grand Canyon National Park and Petrified Forest National Park. You can fully appreciate the force of water after you visited these parks.
3. October 2013: I attended the 8th International Conference on China Urban Water Development in Changsha, China. I gave one presentation “Comparison of Drinking Water Compliance in China and US and Perspectives”. I also chaired a session and participated in a forum on water quality standards.
4. September 2013: Dr Wendong Wang, a visiting scholar from Xi’an University of Architectural Technology, completed his one-year visit in my laboratory. He conducted research on forward osmosis and had a productive year. Professor Wang is serving as a co-advisor for one of my MS students. We will continue our collaborations in teaching and research. Bon Voyage!
5. July 2013: Dr Xiaochang Wang, Vice President of Xi’an University of Architectural Technology, visited Penn State University, Harrisburg and University Park campuses. He gave a presentation “Water Pollution Control and Environmental Improvement in China” in Penn State Institutes of Energy and The Environment and visited the wastewater spray irrigation reuse site at University Park on July 19th.
6. July 2013: Professors Jianmin Wang, Zhiyong Ren, Qilin Li, and I co-chaired a Workshop “Environmental Education and Research China” at the 2013 AEESP 50th Anniversary Conference. Thanks to all speakers, the workshop was a great success.
7. June 2013: I attended the 2013 Qingdao International Conference on Desalination and Water Reuse. I was one of the Closing Forum speakers with Dr. Glen Diagger (President of International Water Association), Mr. Paul Reiter (past Executive Director of International Water Association), Youzhi Guo (Secretary-General, China Desalination Association), and Professor Xiaochang Wang (Forum Chair and Vice-President of Xi’an University of Architectural Technology).
8. May 2013: Dr. Mike McGuire, a member of the National Academy of Engineering, and Professor Mary Jo Kirisits with at University of Texas Austin and I met at Tsinghua University and discussed potential research collaborations. Dr. McGuire and I also visited Xi’an University of Architectural Technology and Guilin University of Technology.
9. February 2013: I have been studying Spanish online with an iPad given to me by five former graduate students. It is a great experience to learn a new language. This time, I am learning a new language for fun, not to take exams. This also gives me an opportunity to learn and appreciate the culture of Spanish speaking countries. Hasta la vista!
1. October 2012: Dr. Hao Tang left for Minneapolis, Minnesota to start a new career in engineering consulting. He received his MS and PhD degrees from Penn State and started his study in our research group in 2005. Best wishes to his new career.
1. Attended Hao Tang’s PhD graduation at Jordan Center at Penn State University Park. Congratulations, Dr. Tang!
2. I am back at Penn State Harrisburg in August 2011. I had a wonderful sabbatical at Tsinghua University. I have established a research group there with two associate professors, two PhD students, and a number of MS students and research associates/assistants. I am still working on my book Drinker's Guide to Water Treatment but with little progress. Hope I will get it done in year 2012.
3. Assisted Penn State in setting up a meeting between Penn State President Graham Spanier and Tsinghua Academic Council Chairman Heping Hu at Tsinghua University.
1. I arrived at Tsinghua University in December 2010. With many top-rated students and research facilities, I look forward to jump-starting my research here. Guess what is my email address at Tsinghua? email@example.com
2. I completed my Fulbright trip at University of Lethbridge, Alberta, Canada. The trip was a memorable experience. I gave seminars at University of Lethbridge, University of Calgary, and University of Alberta. With several colleagues, we also conducted a workshop on disinfection byproducts with Western Canada Water in City of Calgary. I also visited Waterton Lakes, Banff, Yoho, and Kootenay national parks. Canada is a beautiful country with many beautiful people and places.
3. I have started my Fulbright Visiting Research Chair at University of Lethbridge, Alberta, Canada. This is a beautiful place. I can see wild flowers and deer through my office window. I have visited Glacier National Park and plan to visit Waterton, Banff, and Jasper National Parks in the coming weekends.
4. I had a great trip at Tsinghua University. We are looking for a few good men and women (postdoctors and faculty) at Tsinghua. Drop me an email if you are interested or you know someone is interested.
5. I will leave for Tsinghua University on May 22, 2010. I will be in charge of setting up a research group in "Organic Contaminant Control in Water". For my new contact information at Tsinghua, please check the web site of Department of Environmental Science and Enginerring. My email firstname.lastname@example.org will work as well.
6. Thanks to the J. William Fulbright Foreign Scholarship Board , I have been selected to receive a Fulbright Visiting Research Chair award in Canada. I plan to investigate “The Impacts of Climate Change on Small Water Systems” at University of Lethbridgein Alberta, Canada, in Fall
7. It is the time again. I have been approved to do my sabbatical leave in Fall 2010 and Spring 2011. I plan to spend times in Canada, China, and other Asian countries for water related research and teaching. I also plan to work on my book manuscript, Drinker's Guide to Water Treatment.
1. Many Thanks to kind colleagues and friends in water industry, I received a special recognition award from the Pennsylvania Section American Water Works Association at the section’s 2009 Annual Conference in Pittsburgh
2. After one year of service, I stepped down as the President of Chinese-American Professors in Environmental Engineering and Science. This is a great organization to become a member and get yourself involved
1. On October 5, 2008, I gave a keynote presentation “Disinfection Byproduct Removal and Operator Training for Small Systems” at the 13th Canadian National Drinking Water Conference in Quebec City, Canada. As always, students do the work and I get the credit
2. One year after our DBP symposium in Chicago, our book Disinfection By-Products in Drinking Water: Occurence, Formation, Health Effects and Control, edited by Karanfil, Krasner, Westerhoff & Xie is published by Oxford University Press. Thanks all authors for their excellent work
3. I attended the inaugural Jasper Innovation Forum in Jasper National Park in Canada on June 11th to 14th, 2008, to explore key issues of water, food and energy. The best things about this forum are all the expenses are paid and I met many highly creative subject experts, including Dr. Perry McCarty from Stanford University