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Environmental Engineering: Recent submissions

Now showing items 261-280 of 320

Effect of Oxygen Storage Component (Ceo2) on Catalytic Properties and Performance of Co3o4/Tio2 for Three Way Catalytic Activity Under Real Engine Operating Conditions

Bilal Asif (National University of Sciences and Technology, 2019)

Three-way catalytic converter (TWC) is a primary emission control technology that allows simultaneous conversion of three major exhaust gas pollutants i.e.CO, unburned hydrocarbons (HC), and NOx into harmless compounds. ...
Performance Evaluation of Lab Scale Anaerobic Membrane Bioreactor for Domestic Wastewater Treatment

Alia Aslam (National University of Sciences and Technology, 2019)

The aim of this study was to evaluate the applicability of lab scale anaerobic membrane bioreactor (AnMBR) for domestic wastewater treatment. In initial stage, the hydraulic retention time (HRT) of lab scale continuously ...
Biogas Production Through Dry Anaerobic Digestion Of Waste Sludge

Ahmed Talal (National University of Sciences and Technology, 2019)

A single stage pilot scale anaerobic reactor of 50 Litter volume was constructed to conduct dry anaerobic co-digestion of sludge and rice husk. Reactor was started with batch start-up phase followed by semi-continuous phase. ...
Decentralized Wastewater Treatment System (DEWATS or DWTS) for Medium Strength Domestic Wastewater

Aamir Khan (National University of Sciences and Technology, 2019)

Wastewater collection and treatment has always been a challenge for developing countries because of lack of infrastructure for transport and treatment. Most of the areas in developing countries lack proper sanitation ...
Effect of Alkaline and Photocatalysis assisted Alkaline Pretreatment on Characteristics and Biogas Production of Rice Straw

Mariam Sabeeh (National University of Sciences and Technology, 2020)

To overcome recalcitrant nature and investigate enhancement of biogas production of rice straw (RS), it was subjected to pretreatment under mild conditions. Alkaline pretreatment using sodium hydroxide (NaOH), photocatalytic ...
Enhancing Biogas Production From Wheat Straw Through Titanium Dioxide Assisted Alkaline Pretreatment

Asma Imam Khan (National University of Sciences and Technology, 2020)

A huge quantity of lignocellulosic biomass is generated in Pakistan and can be used for sustainable production of biogas by anaerobic digestion (AD). However recalcitrant structure of lignocellulosic biomass is the main ...
Fresh Water Generation from Saline &Contaminated Textile Wastewater using an Active Solar Still Coupled with a Solar Pond System

Adnan Tariq (National University of Sciences and Technology, 2020)

More than 70 % of the available water in Pakistan is unsafe for drinking purposes as per WHO guidelines. The situation is alarming in Sindh and southern Punjab, as the TDS level of more than 57% of raw water is greater ...
Study Related to Groundwater Contamination of Sillanwali (District Sargodha) and its Health Impacts

Adan Fatima Javed (National University of Sciences and Technology, 2020)

Pakistan is a country with water intensive economy as most of its farmland is irrigated through a canal system, but available resources are getting adversely affected due to issues like wastage of water, rapid population ...
Effect of Alkaline Pretreatment and Iron Oxide Nanoparticles on Biogas Production From Rice Straw

Muhammad Junaid Khalid (National University of Sciences and Technology, 2018)

One of the hurdles in the use of agricultural residues for biogas production is their recalcitrance to biodegradation. For this purpose, agricultural residues are pretreated before their anaerobic digestion. Furthermore, ...
Development of Driving Cycle for the Estimation Of Vehicular Exhaust Emissions and Fuel Consumption of Islamabad

Muhammad Jahanzaib (National University of Sciences and Technology, 2018)
Effect of Different Substrates and Concentrations on the Performance of Double Chamber Microbial Fuel Cell

Zia Ullah (National University of Sciences and Technology, 2017)

Microbial fuel cell (MFC) provides new opportunities for energy generation and wastewater treatment through conversion of organic matter into electricity by electrogenic bacteria. This study investigates the effect of ...
Hybridization of Biological Systems to Treat Real Textile Wastewater

Rabia Shoukat (National University of Sciences and Technology, 2017)

Wastewater reclamation from textile industrial sector using hybrid biological technology of anaerobic CSTR - aerobic SBR is considered to be a feasible option to adopt in developing countries. Microbial consortium in ...
Co-pyrolysis of sugarcane bagasse and scrap tire in fixed-bed reactor

Naveed Ahmed (National University of Sciences and Technology, 2014)

The study investigated usability potential of scrap tire and sugarcane bagasse as co-pyrolysis feedstock with a focus on liquid yield. Two raw materials were fed to fixed-bed reactor in various mixing ratios. The experiments ...
Co-Pyrolysis of Wheat Straw and Waste Tires in Fixed-Bed Reactor

Muhammad Zohaib Farooq (National University of Sciences and Technology, 2014)

This study investigates the impact of addition of waste tire (WT) to wheat straw (WS) pyrolysis feedstock on consequent liquid yield quality and quantity. Samples of WS, WT and different blend ratios of the two wastes were ...
Evaluation of Organic and Inorganic Draw solutions using Submerged Osmotic Membrane Bioreactor (OMBR) for Municipal Wastewater Treatment

Muhammad Saboor Siddique (National University of Sciences and Technology, 2014)

In this study, chloride and acetate based salts were investigated as draw solutions to evaluate their viability in osmotic membrane bioreactor (OMBR). Two inorganic divalent chloride based (CaCl2, and MgCl2) and two acetate ...
Biofouling Reduction in Electro Coagulation Integrated Membrane Bioreactor using Quorum Quenching Technique

Maham Khan (National University of Sciences and Technology, 2014)

Membrane fouling reduction is requisite for effective operation of membrane treatment technologies. During Phase 1, four electro bioreactors were operated at different electric exposure modes i.e., 5’ON-10’OFF, 5’ON-20’OFF, ...
Performance Evaluation of an Anaerobic-Aerobic SBR System for the Treatment of High Strength Industrial Wastewater

Khadija Noor (National University of Sciences and Technology, 2014)

A lab-scale anaerobic-aerobic SBR system was investigated for the treatment of high strength industrial wastewater. Anaerobic-aerobic SBR system was operated as a coupled system having 12 h HRT in each reactor and decoupled ...
Effect of Srt and Bio-Carriers on Performance of a Full Scale Mbr Plant

Hasan Fareed (National University of Sciences and Technology, 2017)

Membrane bioreactors (MBRs) are considered as a most viable wastewater treatment process in view of its superior effluent quality, small footprint, and reduced sludge production. In this study, in 1st phase, optimum ...
Comparison Of Quorum Quenching And Backwashing Techniques For Biofouling Control In Submerged Membrane Bioreactor

Haris Yar Abdullah (National University of Sciences and Technology, 2017)

A variety of physical, chemical and biological methods have been adapted for control of biofouling in membrane bioreactors which is considered a major limiting factor in adaptation of MBRs at large scale. This study ...
Recovery of the Diluted Draw Solution of Os-MBR and Production of Purified Water by Membrane Distillation

Hafiz Muhammad Aamir Shahzad (National University of Sciences and Technology, 2017)

This study investigates the application of direct contact membrane distillation (DCMD) for concentrating diluted draw solution (DS) from osmotic membrane bioreactor (Os-MBR). A flat sheet PTFE hydrophobic membrane with a ...

Now showing items 261-280 of 320

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