scholarly journals KARAKTERISTIK GEOKIMIA PHOSPHOR SEDIMEN PERMUKAAN PERAIRAN MANGUNHARJO (SEMARANG) DAN MARUNDA (JAKARTA)

2020 ◽  
Vol 12 (2) ◽  
pp. 207-215
Author(s):  
Noor Syafaat Damardjati ◽  
Lilik Maslukah ◽  
Sri Yulina Wulandari
Keyword(s):  
Surface Sediments ◽  
Inorganic Phosphorus ◽  
Coastal Environment ◽  
Relative Distribution ◽  
Phosphorus Fraction ◽  
Dense Population ◽  
Urban Waste ◽  
Sequential Determination ◽  
Sediment Fraction

ABSTRACTThe waters of Mangunharjo, Semarang and Marunda, Jakarta are located in the area of industrial and dense population. There is the activity of industrial, household, urban waste and agricultural in the land or along the river upstream can potentially as a source of pollutants and impacting the aquatic environment. Pollutants get into the water together with a suspension of sediment through river water flow and precipitation in the coastal environment. The study aims to determine the geochemical characteristics of sedimentary phosphor from two different locations. Determination of the phosphate fraction of sediment, using sequential determination extraction (SEDEX). The results showed that the concentration of the inorganic phosphorus sediment fraction has a similar relative distribution of Mangunharjo and Marunda waters i.e. Fe-P Ca-P Ads-P. The concentration of Ads-P, Ca-P, and Fe-P in Mangunharjo water is between 0.20-0.26 μmol g-1, 2.77-3.60 μmol g-1, and 4.60-5.74 μmol g-1 and Marunda water is between 0.28-0.61 μmol g-1, 2.91-4.13 μmol g-1, and 0.92-2.83 μmol g-1, respectively. The grain size of sediments and current patterns affect the distribution of phosphorus fraction.Keywords: Phosphorus fraction, surface sediments, Mangunharjo, MarundaABSTRAKPerairan Mangunharjo, Semarang dan Marunda, Jakarta berada didaerah kawasan industri dan padat penduduk. Terdapatnya aktivitas industri, rumah tangga, limbah perkotaan dan pertanian di daratan ataupun di sepanjang hulu sungai dapat berpotensi sebagai sumber pencemar dan berdampak bagi lingkungan perairan. Bahan pencemar masuk ke perairan bersama-sama muatan sedimen tersuspensi melalui aliran air sungai dan  mengalami pengendapan di lingkungan pantai. Penelitian ini bertujuan untuk mengetahui karakteristik geokimia sedimen phosphor dari dua lokasi yang berbeda. Penentuan lokasi penelitian menggunakan metode purposive sampling. Penentuan fraksi phosphat sedimen, menggunakan ekstraksi bertingkat (SEDEX). Hasil penelitian menunjukkan bahwa konsentrasi dari fraksi inorganic phosphor sedimen memiliki distribusi relatif yang serupa antara Perairan Mangunharjo dan Marunda yaitu Fe-P Ca-P Ads-P. Konsentrasi Ads-P, Ca-P, dan Fe-P di Perairan Mangunharjo  adalah antara 0.20 - 0.26 μmol g-1, 2.77 - 3.60 μmol g-1, dan 4.60 - 5.74 μmol g-1 dan Perairan Marunda adalah antara 0.28 - 0.61 μmol g-1, 2.91 - 4.13 μmol g-1, dan 0.92 - 2.83 μmol g-1, secara berurutan. Ukuran butir sedimen dan pola arus mempengaruhi konsentrasi fraksi fosfat pada kedua perairan tersebut.Kata Kunci : Fraksi phosphor, Sedimen permukaan, Mangunharjo, Marunda

Determination of Inorganic Phosphorus in Oxalate Extracts of Soils

1977 ◽  
Vol 41 (1) ◽  
pp. 148-149 ◽  
Author(s):  
L. B. Owens ◽  
D. W. Nelson ◽  
L. E. Sommers
Keyword(s):  
Inorganic Phosphorus

scholarly journals Sequential determination of chromium(VI) and chromium(III) by potentiometric flow-injection method.

2000 ◽  
Vol 49 (1) ◽  
pp. 59-64 ◽  
Author(s):  
Hiroki OHURA ◽  
Toshihiko IMATO ◽  
Ikuo MATSUO ◽  
Sumio YAMASAKI
Keyword(s):  
Flow Injection ◽  
Injection Method ◽  
Sequential Determination ◽  
Chromium Vi

scholarly journals Flow injection analysis of water. Part 1: Automatic preconcentration determination of sulphate, ammonia and iron(II)/iron(III)

1993 ◽  
Vol 15 (4) ◽  
pp. 141-146 ◽  
Author(s):  
J. S. Cosano ◽  
M. D. Luque de Castro ◽  
M. Valcárcel
Keyword(s):  
Flow Injection ◽  
Good Reproducibility ◽  
Chemical Systems ◽  
Sequential Determination ◽  
On Line ◽  
Exchange Material ◽  
Iron Complexation ◽  
Simple Flow ◽  
Ammonia Formation

This paper describes a simple flow-injection (FI) manifold for the determination of a variety of species in industrial water. The chemical systems involved in the determination of ammonia (formation of Indophenol Blue), sulfate (precipitation with Ba(II)), and iron (complexation with 1,10-phenanthroline with the help of a prior redox reaction for speciation) were selected so that a common manifold could be used for the sequential determination of batches of each analyte. A microcolumn of a suitable ion exchange material was used for on-line preconcentration of each analyte prior to injection; linear ranges for the determination of the analytes at the ng/ml levels were obtained with good reproducibility. The manifold and methods are ready for full automation.

Determination of Nitrogen and Phosphorus Partitioning within Components of the Biomass in a High Rate Algal Pond: Significance for the Coastal Environment of the Treated Effluent Discharge

1992 ◽  
Vol 25 (12) ◽  
pp. 207-214 ◽  
Author(s):  
N. J. Cromar ◽  
N. J. Martin ◽  
N. Christofi ◽  
P. A. Read ◽  
H. J. Fallowfield
Keyword(s):  
Dry Matter ◽  
Coastal Environment ◽  
High Rate ◽  
Nutrient Input ◽  
Nitrogen And Phosphorus ◽  
Loading Rates ◽  
Effective Strategies ◽  
Treated Effluent ◽  
Algae And Bacteria

Two High-Rate Algal Ponds were operated over residence times of 4 and 6 days respectively, at three COD loading rates equivalent to 600, 350 and 100 kg ha−1d−1 from early September to late October 1991. Samples of pond N and P feed were analysed to obtain nutrient input values to the system. Pond filtrates were also analysed for soluble nutrients. The pond biomass was separated into constituent components of algae and bacteria. Following separation, the discrete fractions were analysed for dry matter, chlorophyll content, and paniculate carbon, hydrogen, nitrogen and phosphorus. Nitrogen and phosphorus balances were then calculated which were used to partition the nutrients into soluble and paniculate phases, and to further separate the paniculate phase into algal and bacterial components. The partitioning of these nutrients, responsible for eutrophication, enables the calculation of removal rates of N and P from the pond systems and makes possible more effective strategies for the removal of the nutrient-rich biomass from receiving water bodies.

Sign in / Sign up

Export Citation Format

Share Document