8 Articles Published

1. CONCENTRATION, SPECIATION AND ENVIRONMENTAL RISK OF HEAVY METAL IN DUSTS COLLECTED FROM THE DIFFERENT FUNCTIONAL AREAS OF A MEDIUM-SIZE CITY IN CHINA

Authors: DAN SHANG , LORETTA Y. LI , NI ZHAO , RANRAN LI , XINWEI LU

Abstract: Concentrations of Cd, Cr, Co, Mn, Ni, Pb and Zn in urban dust samples from different functional areas of a medium-size city in China were determined by atomic absorption spectrophotometry. The speciation of these heavy metals was determined by the three-stage sequential extraction procedure suggested by European Community Bureau of Reference (BCR), and their environmental risks were evaluated based on the potential ecological risk index method. The results show that the concentrations of Cd, Co, Ni, Pb and Zn in the dust, but not Cr or Mn, are higher than their corresponding background values of local soil. The analyzed heavy metals in the dusts from different urban functional areas presented distinct accumulation. Speciation analysis results indicate that Cd and Zn were mainly in acid soluble form (45.1% and 36.1% respectively); Pb was mainly in reducible form (53.9%); Co and Cr were mainly in the form of residual state (43.1% and 65.6%, respectively); Mn was mainly in the residual st

Keywords: concentration, speciation, risk assessment, dust, China

Pages: 1 - 5 | DOI: 10.15224/978-1-63248-026-2-23

2. GSM AND GPS BASED AUTONOMOUS IN SITU WATER POLLUTION MONITORING SYSTEM

Authors: JING WANG , SHAMSUL MASUM , YING LIU

Abstract: River water pollution monitoring is becoming an increasingly important task for environment agencies. The challenging is that very large area needs to be surveyed event for a relatively small section of the river. Furthermore, dynamic changes of the environment condition require real time sampling of the parameters. Unmanned monitoring station network has limited resolution. Deployment of water quality monitoring vessel is extremely expensive. We have developed a practical solution that uses networked agents to achieve near real-time river pollution monitoring. The agents are autonomous/passive in situ measurement floats that can be deployed from the upper stream of the river. The ideal is that when the floats travel down stream the river, the sensors on board will sample and analyze the physical and chemical parameters. The GPS position and the data from the sensors will be uploaded to the base via GSM network. The trajectory of the floats and parameter changes can therefore be dynami

Keywords: Wireless, in situ measurement, mobile monitoring, environment monitoring, drifter

Pages: 6 - 8 | DOI: 10.15224/978-1-63248-026-2-24

3. CHARACTERIZATION OF FERTILIZED LIQUID MANURE AND POLLUTION LOAD AT DIFFERENT PIG FARMS IN SOUTH KOREA

Authors: JEONG-HUN PARK , MOHAMMAD NAZRUL ISLAM , MOON-SU SHIN , YOUNG-TAE JO , HOON JHO

Abstract: Since the ocean dumping was banned in Korea in 2012, Korea government focuses on disposal of manure discharge in animal farms. Domestic animal manure can provide nutrients for crop cultivation and input for biogas production but, if managed in appropriately, can also have a negative impact on the environment. Due to the high pig concentrations and high off-farm disposal costs, on-farm treatment facility has been increased rapidly in Korea. Most of farms are used aeration treatment system while some of them are used with return activated sludge (RAS) treatment system. The objectives of the study were to provide information pig manure management practices and characterization of treated fertilized liquid manure (FLM) at different farms. Accordingly, FLM was subjected to analyze BOD, T-N, T-P, NO3-N, PO4-P, TSS, and NH3-N. BOD value in FLM produced from RAS enhanced farm was in a range between 265-1,945 mg/L with an average value of 1,006 mg/L, while the average BOD of aeration treated fa

Keywords: fertilized liquid manure; pig manure; return activated sludge; treatment system

Pages: 9 - 11 | DOI: 10.15224/978-1-63248-026-2-25

4. ORGANOCHLORINE PESTICIDE ACCUMULATIONS IN GROUNDWATER OF SEYDISUYU BASIN (ESKISEHIR, TURKEY)

Authors: CEM TOKATLI , ESENGUL KOSE

Abstract: Seydisuyu Basin, which is located in the Eskişehir province of Turkey, contains very important agricultural lands. In this paper, the total organochlorine pesticide levels in groundwater of Seydisuyu Basin were investigated by determining Alfa HCH, HCB, Beta HCH, Gama HCH, Aldrin, Cis Heptaclorepoxide, Trans chlordane, Cis chlordane, Dieldrin, 44DDE, Endrin, 44DDD, 44 DDT, Metoxyclor and pesticides with Endosulfan in water samples. Groundwater samples were collected seasonally (2011 – 2012) from 29 wells from the Seydisuyu Basin. According to data observed, although groundwater of the Basin has I. - II. Class water quality in terms of total pesticide concentrations in general, organochlorine pesticide accumulations of some wells were higher than the drinking water limits specified by Turkish Standards Institute (TS266).

Keywords: Seydisuyu Basin, Organochlorine Pesticides, Drinking Water

Pages: 12 - 15 | DOI: 10.15224/978-1-63248-026-2-26

5. A NOVEL METHOD TO INDUCE SOLVENT TOLERANCE IN BACTERIA

Authors: JAMIE HINKS , MUGUANG YU , STEFAN WUERTZ , YAOFENG WANG

Abstract: Biobutanol has vast potential as a drop-in alternative to fossil fuel (1, 2). Butanol can be produced biologically by Clostridium beijerinckii and Clostridium acetobutylicum although biological production is uneconomical due to low process yields which account for high recovery costs by distillation (2-4). Poor microbiological solvent tolerance underlies poor process yields in biological solventogenesis, including butanol production. Solvents are known to compromise the integrity of biological membrane, accordingly research endeavours to develop solvent tolerant microbes have focused on shoring up membrane integrity in instances of solvent challenge using engineering, metabolic an adaptive approaches (2, 5-10). Membrane Insertion Molecules (MIMs) are molecules that modify cell function or stability by intercalating into the phospholipid bilayer of microbial membranes. There are two types of MIM; those designed to act as antimicrobial agents, killing cells by destabilizing the lipid bil

Keywords: butanol, tolerance, biofules, membranes, modofication

Pages: 20 - 20 | DOI: 10.15224/978-1-63248-026-2-59

6. USING ECHINODORUS CORDIFOLIUS AUGMENTED WITH PSEUDOMONAS PUTIDA AND FLAVOBACTERIUM ORYZIHABITANS FOR DOMESTIC WASTEWATER TREATMENT

Authors: JIRAWAN TORIT , PAITIP THIRAVETYAN

Abstract: Contaminated phosphorus in aquatic environments is a critical problem. This research studied on removal of phosphorus from domestic wastewater by using Echinodorus cordifolius augmented with Pseudomonas putida and Flavobacterium oryzihabitans. Plants treated phosphorus from domestic wastewater for 20 test runs continuously, the effect of phosphorus treatment by microorganisms in domestic wastewater was very high at 58% in the first test run. Therefore, P. putida and F. oryzihabitans that were dominant microorganisms in domestic wastewater were inoculated in the system to contribute plants for phosphorus treatment. The result found that E. cordifolius augmented with P. putida and E. cordifolius augmented with mixed microorganisms (P. putida and F. oryzihabitans) could reduce phosphorus in domestic wastewater until passed standard criteria only 14 hrs. Moreover, it was found that the plants were healthy and increased growth rate in a month obviously conform to the increase of plant bioma

Keywords: phosphorus, domestic wastewater, Echinodorus cordifolius, Pseudomonas putida, Flavobacterium oryzihabitans

Pages: 21 - 26 | DOI: 10.15224/978-1-63248-026-2-71

7. DIESEL RECOVERY FROM EXTRACTION OF CONTAMINATED SOILS USING SUBCRITICAL WATER

Authors: JEONG-HUN PARK , MOHAMMAD NAZRUL ISLAM , MOON-SU SHIN , SUN-KOOK JUNG , YOUNG-TAE JO

Abstract: The effective water temperature range of 250~3000C was evaluated to remediate and get recovery of diesel from six different contaminated soils. More than 90% of diesel removal and 70% of recovery was observed in most cases when contaminated soil was extracted at 2750C.

Keywords: recovery, diesel, subcritical water, TPH, soil

Pages: 27 - 30 | DOI: 10.15224/978-1-63248-026-2-73

8. STRUCTURE PREDICTION AND NUCLEIC ACID BINDING STUDIES ON HUMAN YB-1 PROTEIN

Authors: AMIT KUMAR SHAW , ASHUTOSH MANI , SWATI SINGH

Abstract: Cold shock domain proteins are ancient and conserved proteins. These proteins are known to be involved in many significant functions inside the cell. They possess a cold shock domain that is highly studied for its nucleic acid binding capabilities. Here we have modelled the three dimensional structure of human cold shock domain protein, validated the structure and performed nucleic acid binding studies by using molecular docking.

Keywords: Cold shock domain protein, nucleic acid binding, docking

Pages: 31 - 31 | DOI: 10.15224/978-1-63248-026-2-74