Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Markus Heryanto Langsa"'
Autor:
Markus Heryanto Langsa
Publikováno v:
Indonesian Journal of Chemistry, Vol 10, Iss 1, Pp 64-68 (2010)
This study examined the organic constituents aquatically leached from leaf components of two tree species (wandoo eucalyptus and pinus radiate). In particular this study aimed to assess the stable isotope composition behaviour of dissolved organic ca
Externí odkaz:
https://doaj.org/article/c83ce8610b56481ab1f25b1315dc0730
Autor:
Markus Heryanto Langsa
Publikováno v:
Journal of Tropical Soils, Vol 15, Iss 1, Pp 39-47 (2010)
The susceptibility to biodegradation of selected saturated hydrocarbons (SHCs), polycyclic aromatichydrocarbons (PAHs) and asphaltenes in a Barrow crude oil and extracts isolated from soils contaminated with theBarrow crude oil at day 0 and 39 was de
Externí odkaz:
https://doaj.org/article/c98cddf54e564c7ba4ff3fc82a43824b
Publikováno v:
Jurnal Natural. 17:85-96
Limbah cair pabrik kelapa sawit (LCPKS) merupakan limbah yang dihasilkan dari tandan buah segar kelapa sawit. Pemanfaatkan LCPKS sebagai pupuk cair dapat membantu pertumbuhan tanaman kelapa sawit dan meningkatkan produksi tandan buah segar. Tujuan da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1bc0c0bb2313452b41d4d3fa59d1778
https://doi.org/10.30862/jn.v17i2.148
https://doi.org/10.30862/jn.v17i2.148
Publikováno v:
Jurnal Natural. 17:97-103
Penelitian ini bertujuan untuk mengisolasi kitosan dari limbah kulit udang, sintesis komposit kitosan-abu sekam padi sebagai pupuk lepas lambat yang mampu melepaskan unsur hara secara slow release serta menguji pelepasan ion Fe²⁺ dan ion Mn²⁺ d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9c8cac0f783f55d8aa5922bb6d303ac
https://doi.org/10.30862/jn.v17i2.149
https://doi.org/10.30862/jn.v17i2.149
Publikováno v:
Jurnal Natural. 16:25-33
At present the laundry business is one of the promising businesses with targeted consumers from the upper middle class who do not have much time to wash clothes at home. Like other industries, laundry also produces wastewater that can have a negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a1e64f571772c1a9828789f52c50e5e
https://doi.org/10.30862/jn.v16i1.48
https://doi.org/10.30862/jn.v16i1.48
Publikováno v:
Jurnal Natural. 15:46-59
Palm oil mill effluent (POME) is the most abundant waste produced from palm oil mills. POME waste products from palm oil mills can pollute the surrounding environment. The main objective of this study was to determine the use of POME on soil fertilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d4c14cb6769705002ad39ca224964a0
https://doi.org/10.30862/jn.v15i2.125
https://doi.org/10.30862/jn.v15i2.125
Autor:
Markus Heryanto Langsa
Publikováno v:
Jurnal Natural. 14:51-60
Acid mine drainage is formed when certain sulfide minerals in rocks are exposed to oxidizing. Upon exposure to oxidizing conditions, these sulfide minerals are oxidized in the presence of water and oxygen to form highly acidic, sulfate-rich drainage.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b067b06d770531046b664268cf48e8a8
https://doi.org/10.30862/jn.v14i1.15
https://doi.org/10.30862/jn.v14i1.15
Publikováno v:
Journal of Environmental Sciences. 58:340-348
Determination of halogen-specific total organic halogen (TOX) is vital for studies of disinfection of waters containing bromide, since total organic bromine (TOBr) is likely to be more problematic than total organic chlorine. Here, we present further
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6f1f819349f60cf4e966d7bcab9edd1
https://doi.org/10.1016/j.jes.2017.06.010
https://doi.org/10.1016/j.jes.2017.06.010
Publikováno v:
Environmental sciencetechnology. 51(9)
During chlorination of bromide-containing waters, a significant formation of brominated disinfection byproducts is expected. This is of concern because Br-DBPs are generally more toxic than their chlorinated analogues. In this study, synthetic water
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ed1ace1b2f3c30bb91703f4c6bb57c4
https://pubmed.ncbi.nlm.nih.gov/28358483
https://pubmed.ncbi.nlm.nih.gov/28358483
Publikováno v:
Water research. 106
Many fluoroquinolone (FLQ) antibiotics undergo rapid photodegradation in sunlit waters and form multifaceted photo-products. The high photodegradation rate is primarily ascribed to their photosensitizing properties. Though widely studied, the photo-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3684c5b4d266187eb13fc51e8cd10bbf
https://pubmed.ncbi.nlm.nih.gov/27723479
https://pubmed.ncbi.nlm.nih.gov/27723479