UNMC Lake Project: Goodbye

Hello! This is Laketern Spring and sadly, this will probably be my final post on the UNMC Lake Project’s official blog.

The UNMC Lake Project is actually a 10-week summer internship project and unfortunately, the end has come. Meanwhile, team members Doris and Mohammed, who were carrying out the project as part of their masters dissertations, will now proceed to finalize their papers (Good luck!).

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A picture of Mohammed and Doris, from week 1 🙂

To be honest, ten weeks is a really short time and there is simply not enough time to share with everyone about all the interesting activities that we’ve done. There are still so many interesting analyses that have yet to be featured on our blog! There are also many aspects of the UNMC Lake that require more of our curiosity.

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Week 1: Laketern Sum and Laketern Derick, ready for their UNMC Lake adventure!

As a laketern of the UNMC Lake Project, I have personally gained a lot of communication and practical skills. I am fortunate to be able to make friends with the two laketerns who are from different faculties and also to be able to learn from our other two members who are doing their masters, as well as being guided by Suzanne throughout this project.

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Smiling Suzanne, spotted in the lab 🙂

All in all, it was a very productive summer and I have learnt a great deal both personally as well as an environmental science student.

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A picture from my first time climbing up the weather station!

On behalf of the UNMC Lake Project Team, I would like to take this opportunity to thank all of you for your continuous support by reading, liking and commenting on our posts! I had a great time writing posts for the blog and I hope you’ve enjoyed reading the blog too!

This is Laketern Spring, signing off for the last time.

Till we meet again,

The UNMC Lake Project Team.

UNMC Lake: Excerpts From Interview with UNMC Management

Hello again! Today, the UNMC Lake Project would like to bring you some excerpts from an interview with UNMC’s top management by Doris.

As part of the Lake project, Doris had the opportunity to interview some of the top management of UNMC to gather their perception, future expectations and current efforts on the standard of the lake.

Interview with the Provost, Prof. Christine Ennew.

First point of call was the CEO/Provost’s office, where Doris had the privilege to have a friendly chat with the CEO/Provost, Prof. Christine Ennew who described the lake as an “iconic feature; identity of all University of Nottingham Campuses (UK, China and Malaysia); calming and visually appealing”. She also highlighted some uses of lakes such as dog walking, relaxation, physical activities, boating, and nature watching. When asked on features she may wish to see on the lake, she said ducks and water lilies; and that they will make the lake look more natural.

Nevertheless, she is enthusiastic to introduce some activities that will make the lake more enjoyable and attractive as long as “safety and noise issues” are under control.

There is no doubt that Prof is a lover of lakes and anxiously looking forward to see our restoration plan for UNMC lake!

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Prof. Christine Ennew, CEO/Provost of UNMC.

Interview with Director of Corporate Marketing, Diana Chee.

The Lake pictures are mostly used for all our marketing materials such as brochures, online marketing, hand bills and others. It beautifies the Campus. It is very important to maintain the landmark of Nottingham. It has a magnificent view especially the night reflection that brings out the real beauty of the Lake. Photos taken always show the Lake and the Trent which is the symbol of Nottingham.” These were the exact words of Diana when asked to describe the role the UNMC Lake plays in promotion of Campus image.

Her future expectations for the lake, she said I think more fountains and seats should be added. Also recreational activities such as boating, skiing, fishing should be introduced to the Lake. This will also improve its use for marketing function because it will be better to get different pictures of a busy lake with students/staff having fun on it. It will be beautiful to have ducks around the Lake and the pictures will come out so well.

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Director of Corporate Marketing, Diana Chee with Doris.

Interview with Director of Estates, Sandy Loke.

Lastly, the estate department was visited and Doris had a long chat with the Director of Estates, Sandy Loke Lai Mooi.

She threw more light on how the lake is managed, sources of water, drainage pattern and management in the words below:

“The Estate Department takes care of the lake maintenance. There are different contractors for daily cleaning of the pathways and removal of leafy and other debris from the water. The major source of the lake water is rainfall. Runoff from different parts of the campus all drain into the lake and flows through the outflow if the normal level is exceeded. There are 3 pollutant traps which removes all the rubbish before rain water drains into the lake. The traps are cleaned every 6 months. There are also 3 grease/oil traps (2 at Sodexo canteen and 1 at the block A canteen). Laboratory waste water goes into a dilution tank first and checked by the estate department before draining into the lake.Waste water from the halls all go into the sewage treatment plant where it is treated before discharge into the public drain.”

 

From the interview, it can be gathered that the UNMC Management values the lake and are putting in efforts to improve the state of the iconic UNMC Lake. Hopefully, with the vision of the UNMC management as well as efforts from all parties, there will be an increase in UNMC Lake functions in the near future!

Till next time,

The UNMC Lake Project Team.

UNMC Lake: The Public Perception.

Welcome back to the UNMC Lake Project’s official blog! Have you ever wondered what the public thought about the UNMC Lake?

Back in March, Doris has managed to carry out a survey targeted towards visitors during the Open Day to find out their perception of the UNMC Lake. After interviewing a good number of the visitors and potential students, the following results were drawn out from their responses.

Firstly, they were asked if they noticed the UNMC Lake while driving into the campus and they all accepted that they did. Some of the adjectives used to describe the Lake include; attractive, beautiful, unique, wonderful, superb and others. While some complained of the water clarity, others did not notice it.

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A great number of respondents strongly agreed that the Lake enhances the landscape of UNMC.

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When asked about the important features they cherish on a lake, their responses varied (as seen in the chart ). Isn’t it interesting?

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The chart is a representation of the responses gotten for general functions of lakes.

Are the responses of the public similar to yours? If you are a student in UNMC, let us know about YOUR perception in this survey here.

Stay tuned for our final post soon,

The UNMC Lake Project Team.

UNMC Lake: Loss on Ignition

Welcome back to the UNMC Lake Project’s official blog! Today, we will be introducing the Loss on Ignition (LOI) analysis which is carried out by team member Mohammed.

The LOI analysis is used to determine the organic matter content (% OM) of the sediment samples collected from the lake using a sediment trap. Knowing the % OM is important because it allows us to find out if sediment within the lake is from an outside source or if it is generated within the lake.

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Samples for the LOI analysis are obtained from filtering lake water samples collected.

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The LOI analysis utilizes a machine called a muffle furnace.

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The sample to be tested is first weighed and placed into a crucible before being ignited in the furnace.

The %OM is calculated by comparing the weight of a sample before and after it has been ignited.

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A high % OM will indicate that sediment is generated within the lake, while the reverse may indicate that sediment is supplied into the lake from the catchment area.

Till next time,

The UNMC Lake Project Team.

UNMC Lake Project: Precipitation & Lake Level

Welcome back to the UNMC Lake Project’s official blog! As you may recall, there was previously a blogpost about rainfall monitoring by the UNMC Lake Project Team. Besides rainfall, the team has also been monitoring the UNMC Lake level.

After diligently collecting data for many weeks, we will finally be taking a good look at the data collected today – let’s go!

Precipitation

Lake level

As observed by the graphs above, there has a been a long period of little rainfall prior to the current period, in which precipitation levels are increasing again. The lake level readings also correspond to the precipitation readings – lake level has been decreasing during the dry period (evaporation!) but has now risen again due to the increase in precipitation.

Precipitation is slowly becoming more frequent, compared to what we have previously experienced during the dry period (June-July). The UNMC Lake level is expected to follow the trend of precipitation.

Stay tuned for our next post,

The UNMC Lake Project Team.

Visit to UKM

Hello there! Last week, Dr Suzanne, Mohammed and Doris went for a visit in Universiti Kebangsaan Malaysia (UKM).
They were there to meet Dr. Pauziah Hanum, who is the co-supervisor for Doris and Mohammed’s MSc dissertation.
Meeting with Pauziah

From left: Mohammed, Dr Suzanne McGowan, Dr Pauziah Hanum and Doris.

Dr Pauziah Hanum Abdul Ghani holds a PhD in Environmental Science from the Universiti Putra Malaysia (UPM). She has had 28 years of experience in the Department of Environment (DOE) majoring in Environmental Impact Assessment (EIA), Water Quality, Marine Pollution, Toxic Waste Management and  Lake Water Quality Restoration. Dr Pauziah is currently the Project Director for the Putrajaya Lake Management Program.
During the meeting, the following matters were discussed with Dr Pauziah:
  1. Research proposals (which is basically what the UNMC Lake Project is about).
  2. The problems associated with UNMC Lake such as sources of sediment, pollution as well as water that recharges the lake and retention capacity of the lake during the dry season. Possible alternative sources of water to recharge the lake in the event of a long dry season spell were also discussed.
  3. Other methods for lake bank protection and solutions to pollution by possible usage of some plants like lilies, lotus, etc.
  4. Synergies on sharing knowledge and experience derived from other lake restoration projects in Malaysia in order to benefit the UNMC lake project.

The meeting was really fruitful for the UNMC Lake Project!

Till next time,

The UNMC Lake Project Team.

 

UNMC Lake Project: Quiz!

The UNMC Lake Project Team is excited to announce the start of our quiz event!
The event period of the ‘UNMC Lake Project: Quiz!’ is from 12 August 2014 (12pm) to 19 August 2014 (12pm). The winner of the quiz will get to go on a boat ride on the UNMC Lake – don’t miss out on this chance!


 In order to participate in this event, please forward your details and answers to the following questions via email to Laketern Spring (khby3kgu@nottingham.edu.my).
Name:
Student ID:
Contact number:
  1. Define the term turbidity and state the likely cause(s) of turbidity in UNMC lake?
  2. The UNMC lake project team is investigating phosphorus levels in the lake, why is this important?
  3. Identify the following picture and state what it is used for by the UNMC lake project team, and why it is important?img_2599
  4. The UNMC lake project team discovered a distinct difference between Dissolved Oxygen (DO) levels in the lake during the day and when night falls. Can you make a guess as to the reason behind this phenomenon?

Terms and conditions

  • The ‘UNMC Lake Project: Quiz!’ event is open to all students from University of Nottingham Malaysia Campus.
  • To enter the event, you should answer all 4 (FOUR) questions published in this blog post and submit them together with your personal details (so that we can contact you).
  • Quiz answer submissions should be done via email to khby3kgu@nottingham.edu.my between 12 August 2014 (12pm local time) to 19 August 2014 (12pm local time). Late submissions will not be considered.
  • 1 (ONE) winner with the best answers will be picked.
  • Winner will be informed via email (sent to the email used for submission of answers).
  • The winner of the event is eligible to go on a boat ride with one of the UNMC Lake Project Team members on the UNMC Lake.
  • Date and time of the boat ride will be confirmed on a later date, subject to the availability of both the winner and UNMC Lake Project team.

Send in your answers to stand a chance for a row row row your boat adventure on the UNMC Lake!

See you on the lake!

The UNMC Lake Project Team.

UNMC Lake Project: We have international visitors!

Hello again! As you might have seen on our Facebook page here, the UNMC Lake Project team hosted about 70 international students last week. The team had an exciting day preparing and introducing them to the wonders of the UNMC Lake in a one-hour time slot.

Here are some highlights from that day!

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The inverted microscope, set up for the viewing of phytoplankton found in the UNMC Lake.

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One of the many microscopes set up for viewing of zooplankton found in the UNMC Lake water samples.

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The team also prepared to show the students some of the sampling equipment used.

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Our first stop: a brief introduction of the UNMC Lake on the steps of the Trent building by Suzanne, while students take a good look at the UNMC Lake.

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Back to the lab! Second stop: Mohammed discusses the pH of the UNMC Lake with the students.

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For a more hands-on experience – students were given pH paper and a beaker containing water sample from the UNMC Lake to find out the pH for themselves!

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Third stop: the microscope station. Students get to view zooplankton and phytoplankton found in the UNMC Lake.

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Laketern Sum assists some of the students with the microscopes.

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Our final stop: the sampling equipment station. Laketern Derick explains the usage of all of our equipments to the students – do you know what equipment he has in his hands?

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The students pose for a few pictures with the sampling equipment.

The UNMC Lake Project team had a great time hosting our international guests! While it was only a short session, we hope that our guests had a fun-filled and informative time with us!

Till next time,

The UNMC Lake Project Team.

UNMC Lake: Total Phosphorus Analysis

Hello again! Today, the UNMC Lake Project Team will be introducing you to the Total Phosphorus (TP) analysis carried out by our team member, Doris.

Why do we measure Phosphorous concentration in the lake water?

Phosphorous is an essential nutrient for organism growth in a water body and they occur in the water as phosphates of various forms (orthophosphates, polyphosphates and organic phosphates). Lake water rich in phosphorous cause algal bloom which leads to colour, taste and odour problems. Dead and decaying algae can also cause oxygen depletion which in turn leads to fish kills. Phosphorous can come from various sources such as fertilizers, domestic waste water, detergents and geological formations.

TP analysis measures all forms of phosphorous in the water sample (organic, particulate and dissolved forms).

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First, unfiltered water samples are measured into conical flasks and a digestion reagent (containing sulphuric acid and potassium persulphate powder) is added to each sample.

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The conical flasks are then covered with aluminium foil and sealed with tape.

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The samples will be digested in a pressure cooker for 1.5hours, cooled and other reagents are added before measuring the absorbance against reagent blanks in a spectrophotometer.

The concentration of phosphorous in each sample is calculated through the calibration curve.

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Why do we digest the samples? The digestion helps the conversion of inorganic phosphate into the orthophosphate form for analysis.

While carrying out the TP analysis, care must be taken in order to not introduce external phosphates to the samples which will affect the readings. This can be achieved by acid washing all the glassware used for the sampling and analysis.

Importance of the test: Help us to find out if the phosphorous level in the lake is above normal standards and if it is the major cause of the water degradation in the UNMC Lake.

Stay tuned for the TP analysis results!

Till next time,

The UNMC Lake Project Team.

UNMC Lake: Biochemical Oxygen Demand.

Hello again from the UNMC Lake Project Team! For today’s post, we will be covering an analysis carried out by Laketern Derick – the Biochemical Oxygen Demand (BOD) analysis. Let’s get started!

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Sample bottles prepped and ready for BOD analysis.

First things first, what is BOD?

Biochemical oxygen demand, known as BOD commonly, is the amount of dissolved oxygen (DO) required by aerobic biological organisms to decompose organic materials in a water sample over a specific time period. It is used as an indication of the degree of organic pollution in a water body.

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The preparation of BOD water involves the addition of nitrification inhibitor and BOD nutrient buffer pillows to distilled water.

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60ml of sample is placed into the sample bottle, which is then topped up with 240ml of BOD water. A blank solution (distilled water) is set up as control. Replicates of each sample are also set up to ensure accuracy.

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The Dissolved Oxygen Meter is used for the BOD analysis.

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The probe of the DO meter is placed into the sample bottle – the result (DO level) displayed on the machine is recorded as the initial oxygen level.

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The sample bottle is then sealed with parafilm after being tested for oxygen level.

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The sample bottles are stored in an incubator.

Usually, the water samples for BOD analysis are incubated for a period of five days at 20°C. The samples will then be tested with the DO meter and differences between the initial and final oxygen levels are calculated. The final results are expressed in milligrams of oxygen consumed per litre of sample (mg/L).

So… how do we interpret the results?

Typically, clean water bodies have a low BOD value. Hence, the higher the BOD value, the higher the degree of organic pollution in the water body.

Are you curious about the BOD value of the UNMC Lake? Stay tuned for the results, coming soon!

Till next time,

The UNMC Lake Project Team.