#TITLE_ALTERNATIVE#
<p align ="justify">Citarum River is the longest river in West Java. It is widely used in various aspects of human life. The high use of river water is comparable to the environmental problem, which is a contamination by a variety of waste contains hazardous chemicals, heavy metals,...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/25436 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align ="justify">Citarum River is the longest river in West Java. It is widely used in various aspects of human life. The high use of river water is comparable to the environmental problem, which is a contamination by a variety of waste contains hazardous chemicals, heavy metals, and pathogens. Besides interfering human health, these pollution also lead to disruption of biogeochemical cycles. One of which is nitrogen cycle on the river ecosystem involving various types of Nitrogen Cycling Bacteria (NCB). The purpose of this research is to know the spesies and abundance of NCB, E.coli and Salmonella sp., also to determine the effect of different pollution on the sediment to the diversity index of NCB, the abundance of E.coli, and its effect on nitrogen cycle. Based on this research, NCB which were identified as 7 isolates, namely Bacillus licheniformis NCB ctrm p.1 (s13a), Brevibacterium iodinum NCB ctrm p.2 (s22a), Bacillus barbaricus NCB ctrm p.2 (s23b), Bacillus safensis NCB ctrm p.3 (s33b), Bacillus pumilus NCB ctrm p.4 (s41b), Stenotrophomonas pavanii NCB ctrm p.3 (s31b) dan uncultured bacterium NCB ctrm p.6 (s63b). NCB highest abundance found in S4 (Cilampeni). The abundance of E.coli found in all sampling locations exceeded the standard quality. The highest abundance of E.coli obtained in S5 (Nanjung) while the highest abundance of Salmonella sp. found in S4 (Cilampeni). It has also a significant effect of a different pollution concentration to the diversity index of NCB and concentration of various nitrogen compounds. Treatment s3p4 (sediment 3 Selacau, Batujajar and 15% E. coli) provides a highest decrease of the diversity index and the number of E.coli. Treatment s3p1 (sediment 3 Selacau, Batujajar and 0% E.coli) provides the highest decrease of NTK and nitrate. Treatment s1p3 (sediment 1 Situ Cisanti and 10% E.coli) provides the highest increase in ammonia and treatment s1p1 (sediment 1 Situ Cisanti and 0% E.coli) shows the highest increase in nitrite. Thereby, the higher concentration of pollution will result in lower diversity index of NCB which has a significant impact in the nitrogen cycle.<p align ="justify"> |
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