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Environmental Engineering: Recent submissions

Now showing items 301-320 of 320

CONTROL OF MEMBRANE BIOFOULING USING QUORUM QUENCHING BACTERIA IN MEMBRANE BIOREACTOR

Maqbool, Tahir (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

Relaxation or backwashing is obligatory for effective operation of membrane module and intermittent aeration is also helpful for nutrients removal. In Phase I- effects of different filtration modes on membrane fouling ...
The EHS Management Issues of Public Hospitals

Ashraf, Muhammad Rehan (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

Hospitals are established and operated for providing healthcare services to physically and mentally unhealthy human beings. Such facilities should therefore demonstrate high quality Environmental, Health and Safety (EHS) ...
TREATABILITY STUDIES OF FLOUR MILLS EFFLUENT – A CASE STUDY OF ALKAUSAR FLOUR MILLS ISLAMABAD

Asif, Muhammad Bilal (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

Pakistan is increasingly confronted with shortage of fresh water resources as annual per capita water availability has reduced to less than 1000 m3. Wastewater reclamation and reuse practices must be adopted to deal with ...
Removal of Chromium from Wastewater by Wet Chemical Ferrite Process

Azhar Virk, Muhammad Syam (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

The present research work focuses on the removal of Chromium (III) from industrial waste water using the technique of wet chemical ferrite process resulting in ferrite in the nanoparticle range. Using synthetic waste ...
MIXED ESTERS FROM HIGH FREE FATTY ACIDS WASTE COOKING OIL USING A HETEROGENEOUS COLUMN SYSTEM

Khan, Jamshed Ali (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

A heterogeneous catalytic column packed with Amberlyst 15 was used to evaluate the impact of varying column flow rate and fatty acid to ethanol molar ratio on esters production. The reaction temperature was kept constant ...
Decentralized Treatment of Domestic Wastewater Using Membrane Based Septic Tank (MBST)

AHMED, SYED BASEER (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

tanks are widely used in rural and urban areas treating domestic wastewater from individual and cluster of houses, however, due to their low treatment and biodegradation capacity, they are still considered as intermediate ...
REMOVAL OF CAUSTIC SODA FROM INDUSTRIAL WASTEWATER

IMRAN, BABAR (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2014)

Sodium hydroxide is commonly used as a strong base by various chemical industries. The processed wastewater therefore enhances the pH levels of the receiving water bodies affecting the physiological functions of aquatic ...
Development of Membrane Based Septic Tank in Treating Domestic Wastewater

Ali, Saadat (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2012)

Centralized treatment systems are complex and expensive in terms of construction, operation, and maintenance. Whereas decentralized systems are simpler and low cost in operations at or near the point of wastewater ...
PERFORMANCE EVALUATION OF HYBRID BIOLOGICAL REACTORS FOR TEXTILE WASTEWATER TREATMENT USING POWDERED ACTIVATED CARBON

ZAHOOR, ONAIRA (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2013)

Due to the population growth, urbanization, change in human life style and lacking natural water resources, the need and demand of water has become ever greater. To overcome water scarcity problem, wastewater can be treated ...
REUSE OF ALUM SLUDGE FOR PHOSPHORUS REMOVAL FROM MUNICIPAL WASTEWATER

Maqbool, Nida (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2012)

Municipal wastewater (MWW) is mostly rich in nutrients such as phosphorus (P), nitrites (NO2-), nitrates (NO32-) and ammonium (NH4+) etc. When discharged into water bodies, MWW cause algal growth resulting into eutrophication ...
EVALUATION OF TREATMENT PERFORMANCE OF FULL‐SCALE SEWAGE TREATMENT PLANT (STP), SECTOR I‐9, ISLAMABAD

SHAHZAD, MOAZZAM (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2012)

Mohenjo-Daro Civilization at about 1500 BC in Pakistan is considered to be the pioneer's in the construction of wastewater management system in the world. However, quite unfortunately, at present like most developing ...
Experimental Validation of Roughing Filtration Theory for High Turbidity Water

HAROON, HASSAN (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2012)

As an agricultural country Pakistan depends primarily on glacial melts and monsoon rains. Water from these sources flows down to rivers finding its way to Arabian Sea. The surface water thus collected is the chief source ...
SURFACE WATER QUALITY AND BENTHIC SOIL STUDY OF LEH NULLAH

Hussain, Faisal (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2013)

Heavy metals, in any stream are a damaging factor for the aquatic biota which naturally ingest the organic matter present in that stream. Also the presence of heavy metals in any stream decreases its self purification ...
Immobilization of Titania Nanoparticles on a Solid Support

FAHIM UD DIN, MUHAMMAD (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2012)

This study was conducted to find an effective way to immobilize titania nanoparticles (un-doped & silver-doped) on a suitable solid substrate so that this coated substrate would be used for photocatalytic elimination ...
COMPARING PERFORMANCE AND FOULING BEHAVIOR OF MEMBRANE BIOREACTORS (MBRs) FOR DOMESTIC WASTEWATER TREATMENT

AHMAD, AMAN (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2012)

Water scarcity and water pollution pose a critical challenge in many developing countries including Pakistan. One way to cope with the existing water scarcity is to reuse wastewater after suitable level of treatment. ...
INFLUENCE OF BIOFILM CARRIERS ON MEMBRANE FOULING TENDENCY AND TREATMENT PERFORMANCE IN HYBRID MEMBRANE BIOREACTOR

Rehman, Zohaib Ur (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2011)

In moving biofilm membrane bioreactor (MB-MBR) sponge carriers for biofilm growth were coupled with conventional submerged membrane bioreactor (C-MBR). This study compared the fouling propensity of C-MBR with MB-MBR and ...
EVALUATION AND OPTIMIZATION OF SEWAGE TREATMENT PLANT (STP) PERFORMANCE AT SECTOR I-9, ISLAMABAD

FATIMA, SYEDA SUMAIRA (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2011)

In this study, the performance of wastewater treatment plant (WWTP) located at sector I-9 Islamabad, Pakistan, was evaluated. This full scale domestic wastewater treatment plant is based on conventional activated sludge ...
Designing a GIS Based Solid Waste Collection and Transportation Model for Islamabad Zone-I

Jaffri, Syed Muhammad Abbas (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2011)

This study aims to enhance the current solid waste collection & transportation system in Islamabad Capital. The fully developed Sectors of Islamabad are the study area. The Current solid waste collection system comprises ...
CHARACTERIZATION OF METALLIC POLLUTANTS IN PAHARANG DRAIN, FAISALABAD

Mustafa, Ghulam (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2010)

Metals in the untreated combined wastewater pose a serious threat to the soil and water environment in general and to human health in particular. Samples from Paharang Drain, Faisalabad, one of the major carriers of ...
Leachate Generation and Characterization from Solid Waste Dumps of Islamabad and Rawalpindi

KHAN, AHSAN NASEER (NATIONAL UNIVERSITY OF SCIENCES AND TECHNOLOGY ISLAMABAD, 2010)

This study was aimed to determine leachate generation potential and its chemical characterization from three main dumps of Islamabad and Rawalpindi using column cell approach. Compositions and density of the waste of sector ...

Now showing items 301-320 of 320

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