نتایج جستجو برای: river self remediation

تعداد نتایج: 618605  

2018
Yaxin Pei Zhengsheng Yu Jing Ji Aman Khan Xiangkai Li

The Yellow River is the most important water resource in northern China. In the recent past, heavy metal contamination has become severe due to industrial processes and other anthropogenic activities. In this study, riparian soil samples with varying levels of chromium (Cr) pollution severity were collected along the Gansu industrial reach of the Yellow River, including samples from uncontamina...

Journal: :Environmental toxicology and chemistry 2017
James U Van Dyke Catherine M Bodinof Jachowski David A Steen Brian P Jackson William A Hopkins

Large-scale releases of environmental contaminants from industrial facilities can cause considerable damage to surrounding ecosystems and require remediation. The expense and/or undesirable environmental side effects of physical removal may constrain remediation efforts. In 2008, approximately 4.1 million m3 of fly ash were released into the Emory River at a coal-burning power plant in Kingston...

2017
Lin Zhu Xun Li Chen Zhang Zengqiang Duan

Heavily polluted sediment is becoming an important part of water pollution, and this situation is particularly acute in developing countries. Sediment has gradually changed from being the pollution adsorbent to the release source and has influenced the water environment and public health. In this study, we evaluated the pollutant distribution in sediment in a heavily polluted river and agitated...

Journal: :Journal of hazardous materials 2015
Madiha Salman Jason I Gerhard David W Major Paolo Pironi Rory Hadden

Self-sustaining treatment for active remediation (STAR) is an innovative soil remediation approach based on smoldering combustion that has been demonstrated to effectively destroy complex hydrocarbon nonaqueous phase liquids (NAPLs) with minimal energy input. This is the first study to explore the smoldering remediation of sand contaminated by a volatile NAPL (trichloroethylene, TCE) and the fi...

Journal: :Environmental technology 2008
S M Tiquia M Schleibak J Schlaff C Floyd B Benipal E Zakhem K S Murray

This study was conducted to elucidate microbiological characteristics of river water and groundwater communities in order to improve our conceptual and predictive understanding of river and groundwater ecosystem processes, functioning and management. Rouge River bacterial communities from shallow groundwater and river water were screened using Biolog Ecoplates, which test for oxidation of selec...

Journal: :Ecotoxicology 2012
Luke R Iwanowicz Vicki S Blazer Nathaniel P Hitt Stephen D McCormick David S DeVault Christopher A Ottinger

The use of fish as sentinels of aquatic ecosystem health is a biologically relevant approach to environmental monitoring and assessment. We examined the health of the Ashtabula River using histologic, immunologic, and endocrine biomarkers in brown bullhead (BB; Ameiurus nebulosus) and largemouth bass (Micropterus salmoides) and compared fish collected from a reference site (Conneaut Creek). Sea...

2017
Lilia Rodríguez-Tapia Jorge A. Morales-Novelo

Currently, one of Mexico's most severe environmental problems is the high levels of pollution of many of its rivers. The present article focuses on the relationship between total coliform bacteria levels and the increase of human digestive tract diseases in the highly polluted Atoyac River in the central Mexican states of Puebla and Tlaxcala. Pollution has become a potential health hazard for p...

2010
Jacob Napieralski

Combined sewer overflows (CSOs) negatively affect water quality in urban river and lake systems worldwide by contributing thermally enhanced waters, particulates, and various organic and inorganic contaminants. Cities that utilize CSOs must reassess aging sewer systems or minimize the impact overflows have on water quality. The Buffalo River, which drains into northeastern Lake Erie, receives c...

Journal: :The Science of the total environment 2008
Ulla Haverinen-Shaughnessy Anne Hyvärinen Tuula Putus Aino Nevalainen

Based on seven case studies of buildings that underwent different degrees of moisture and mold damage remediation, we aimed to develop methodology for assessment of the success of the remediation process. Methods used in gauging the success included technical monitoring of performance of building structures and heating, ventilation and air conditioning (HVAC) systems, microbial monitoring of in...

2012
Rafael Penadés Rosa Catalán Núria Pujol Guillem Masana Clemente García-Rizo Miquel Bernardo

Cognitive remediation therapies seem to ameliorate cognitive impairments in patients with schizophrenia. Interestingly, some improvement in daily functioning can also be expected as a result. However, to achieve these results it is necessary that cognitive remediation is carried out in the context of broader psychosocial rehabilitation involving the learning of other communication, social, and ...

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