The Influence of Genjer (Limnocharis flava) to The Absorptive pollutant and The Avaibility of Oxygen in Source of Raw Water (PDAM) (ISPO 2012)

 The Influence of Genjer (Limnocharis flava) to The Absorptive pollutant and The Avaibility of Oxygen in Source of Raw Water (PDAM)

 ABSTRACT

Hummaira Atthirah Manda and Aidah fithriah. 2011. The Influence of Genjer (Limnocharis flava) to The Absorptive pollutant and The Avaibility of Oxygen in Source of Raw Water (PDAM). Subject :Environmental. Supervisors : Dwi Eldina and Kuntoro budiyanto

Environment Pollution is a problem about our safety, our health, and our life. One of them is water pollution. Water pollution is the main global problem from international until private water sources and wells. Whether it is polluted because of the industrial waste,household waste,pesticide waste,and others. It is dangerous for human health as the consumer. This research utilizes genjer (Limnocharis flava) that will be applied to produce rawwater that isn’t polluted and contain much dissolved oxygen anymore can be a solution. Finally we can have good quality of water. The problem formulations which are done are: whether genjer (Limnocharis flava) is useful in overcoming the polluted water, whether genjer (Limnocharis flava) can help to add oxygen into source of raw water and Can genjer (Limnocharis flava) absorb the pollutant. The purposes of this research are to know whether genjer (Limnocharis flava) is useful in overcoming the polluted water, to test genjer (Limnocharis flava) that may add oxygen into water, and to prove genjer (Limnocharis flava) whether can absorb the pollutant. As the independent variable that is the amount of pollutant as the sample, and the dependent variables are the amount of pollutant that is absorbed by genjer (Limnocharis flava) and the amount of dissolved oxygen in the sample water. This research has been done in the area of SMA Semesta Semarang and chemistry laboratorium of UNNES since October to December 2011. The research uses three treatment experiments,each pollutant solution of detergen,urea and controlled water. Afterthat,it is observed by using AAS (Atomic Absorption Spectroscopy) to test how much metal can be absorbed by the  plant. Based on the research, Ph average is neutral that inclined to base. Meanwhile BOD doesn’t have different between detergent water and urea water waste but on the sample genjer (Limnocharis flava) that is  planted on urea water waste and sample genjer that is planted on detergent water waste are none. The highest amount of dissolved Oxygen on raw water that is planted by genjer is 64.1 ppm. It is higher than controlled water treatment. It shows that genjer (Limnocharis flava) can give oxygen to raw water. The highest amount of COD ( Chemical Oxygen Demand) is on raw water that is planted by genjer is 533 ppm. Meanwhile amount of COD on sample urea water and detergent water are lower. Detergen that is contained on all sample is none except sample of genjer (Limnocharis flava) that is planted on detergent water contain 172.129 ppm phospate ion. This is higher than the others sample. For amount of ammonia, all sample is none, except genjer (Limnocharis flava) that is planted on urea water that have 0.166 ppm. For amount of Alkyl Benzene Sulfonate, all sample is none. It is expected that people don’t use detergent, but use concentrate soap.The conclusion is genjer (Limnocharis flava) can absorb detergent and urea waste and supply oxygen.

Keywords : Genjer (Limnocharis flava), water, dissolved oxygen, water pollutant.