Nutrients and Organic Matter in Wastewater
Lorilla, Lorena (2013)
Lorilla, Lorena
Tampereen ammattikorkeakoulu
2013
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2013111316932
https://urn.fi/URN:NBN:fi:amk-2013111316932
Tiivistelmä
The aim of the project was to test if three different systems of treating wastewater were able to treat the wastewater from mineral processing , and if they were to reduce the amount of nutrients and organic matter in the tested process water. This project was implemented in the greenhouse in the laboratories of Tampere University of Applied Sciences. This final thesis is a part of a TAMK Research, Development and Innovation project. The project results could be used for further studies in research projects con-cerning wastewater treatment methods.
The systems tested were modifications of biological treatment methods. One of them was a coarse filter system made of willow branches, called the Willow stack Tower. The second system was an ebb-flow system based on a modification of the willow branch filter, called the Ebb-Flow. The third system tested used wastewater as food for algae; this system is called the Algae Turf Scrubber.
The analyzed parameters were total nitrogen, phosphate, total organic carbon and bio-chemical oxygen demand over a period of five days. There were two test runs made in the testing process. In the first test run the experiment was done with untreated wastewater from mineral processing . In the second test run mining wastewater enriched with nutrients was applied in all the systems.
The results show that the concentration of total nitrogen remained constant though the testing process and the phosphate precipitated with heavy metals. Biochemical Oxygen Demand removed value is higher in the Willow Stack Tower and Ebb-Flow system than in the Algae Turf Scrubber.
In conclusion, the three systems tested do not seem to work well. Testing of the three systems concerned should be continued, since e.g. Total Organic Carbon content in the test procedure concerned gave confusing results.
The systems tested were modifications of biological treatment methods. One of them was a coarse filter system made of willow branches, called the Willow stack Tower. The second system was an ebb-flow system based on a modification of the willow branch filter, called the Ebb-Flow. The third system tested used wastewater as food for algae; this system is called the Algae Turf Scrubber.
The analyzed parameters were total nitrogen, phosphate, total organic carbon and bio-chemical oxygen demand over a period of five days. There were two test runs made in the testing process. In the first test run the experiment was done with untreated wastewater from mineral processing . In the second test run mining wastewater enriched with nutrients was applied in all the systems.
The results show that the concentration of total nitrogen remained constant though the testing process and the phosphate precipitated with heavy metals. Biochemical Oxygen Demand removed value is higher in the Willow Stack Tower and Ebb-Flow system than in the Algae Turf Scrubber.
In conclusion, the three systems tested do not seem to work well. Testing of the three systems concerned should be continued, since e.g. Total Organic Carbon content in the test procedure concerned gave confusing results.