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| Alarcón,Evelyn; Decap,Jacqueline; Vidal,Gladys. |
| Kraft mills are responsible for the massive discharge of highly polluted effluents, and new bleaching processes (i.e. Total Chlorine Free (TCF)) is presented as a feasible option to reduce this environmental impact. However, increased TCF pulp production is accompanied by an increase in chelate use. The most commonly used chelates, ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DPTA), are considered to be relatively persistent substances in water treatment plants, and consequently environmentally critical compounds. The purpose of this work is to investigate DPTA behaviour in an anaerobic system. An Anaerobic Filter (AF) was operated with three different DPTA load rates (LR DPTA = 0.07 - 0.28 gDPTA/L×d), and the... |
| Tipo: Journal article |
Palavras-chave: Anaerobic biodegradation; DTPA; Kraft mill effluent. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000300011 |
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| Liu, Yujia; Lu, Hailong; Yin, Xijie; Ruffine, Livio; Çağatay, M. Namik; Yang, Hailin; Chen, Chunqing; He, Dong; Zhu, Zhenli; Yalamaz, Burak. |
| Isotopic, mineralogical and elemental analyses have been conducted for the geochemical characteristics of the bulk carbonates in the sediment cores from the Western High and Çınarcık Basin in the Sea of Marmara to investigate the authigenic, biogenic and detrital components and their possible use in paleoceanographic studies. The Western High is a relatively shallow (‐500 to ‐800 m) compressional area characterized by relatively low sedimentation rates (30‐40 cm/kyr) whereas the Çnarcık Basin is a deep (~1250 m) transtentional area represented by high sedimentation rates (>1 m/kyr). Both 87Sr/86Sr and δ18O of bulk carbonates from the Western High exhibit significant variations, increasing steeply from 87Sr/86Sr of 0.708437 to 0.708916 and δ18O of ‐3.2‰... |
| Tipo: Text |
Palavras-chave: Bulk carbonates; Carbon and oxygen isotopes; Strontium isotopes; Transgression; Anaerobic biodegradation; Sea of Marmara. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00514/62518/66821.pdf |
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