Removal of fluoride and total dissolved solids from coalbed methane produced water with a movable ultra-low pressure reverse osmosis system

2012 ◽  
Vol 51 (22-24) ◽  
pp. 4359-4367 ◽  
Author(s):  
Xiaoning Liu ◽  
Zhengyi Hu ◽  
Chunyou Zhu ◽  
Guoqi Wen ◽  
Xianchao Meng
Keyword(s):  
Reverse Osmosis ◽  
Coalbed Methane ◽  
Produced Water ◽  
Low Pressure ◽  
Total Dissolved Solids ◽  
Dissolved Solids

Performance Study of Some Reverse Osmosis Systems for Removal of Uranium and Total Dissolved Solids in Underground Waters of Punjab State, India

2014 ◽  
Vol 4 (2) ◽  
pp. 467-476
Author(s):  
Nisha Sharma ◽  
Jaspal Singh ◽  
Barjinder Kaur
Keyword(s):  
Drinking Water ◽  
Reverse Osmosis ◽  
State Government ◽  
Total Dissolved Solids ◽  
Internal Exposure ◽  
Drinking Water Source ◽  
Performance Study ◽  
Dissolved Solids ◽  
Underground Waters ◽  
High Concentrations

Radionuclides (uranium, thorium, radium, radon gas etc.) are found naturally in air, water, soil and rock. Everyday, we ingest and inhale these radionuclides through the air we breathe and through food and water we take. Out of the internal exposure via ingestion of radionuclides, water contributes the major portion. The natural radioactivity of water is due to the activity transfer from bed rock and soils. In our surveys carried out in the past few years, we have observed high concentrations of uranium and total dissolved solids (TDS) in drinking waters of some southern parts of Punjab State exceeding the safe limits recommended by national and international agencies. The main drinking water source is the underground water procured from different depths. Due to the highly saline taste, disorders in their digestive systems and other ailments, people are installing reverse osmosis (RO) systems in their houses. Some RO systems have been installed on commercial basis. The state government is also in the process of installing community RO systems at the village level. As high values of uranium are also undesired and may pose health hazards due to radioactivity and toxicity of uranium, we have conducted a survey in the field to study the performance of various RO systems for removal of uranium and TDS. Water samples from about forty RO systems from Faridkot, Mansa, Bathinda and Amritsar districts of Punjab State were collected and analyzed. Our results show that some RO systems are able to remove more than 99% of uranium in the underground waters used for drinking purposes. TDS values are also reduced considerably to the desired levels. So RO systems can be used to avoid the risk of unduly health problems posed by high concentrations of uranium and TDS in drinking water.

Optimization of Apparent Peak Viscosity in Carboxymethyl Cellulose Fracturing Fluid: Interactions of High Total Dissolved Solids, pH Value, and Crosslinker Concentration

SPE Journal ◽  
2016 ◽  
Vol 22 (02) ◽  
pp. 615-621 ◽  
Author(s):  
N. E. Pica ◽  
C.. Terry ◽  
K.. Carlson
Keyword(s):  
Carboxymethyl Cellulose ◽  
Oil And Gas ◽  
Produced Water ◽  
Ph Value ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Service Companies ◽  
Polymer Loading ◽  
Crosslinker Concentration ◽  
Reducing Costs

Summary It has been common practice to use a freshwater source (either ground water or surface water) as the base fluid for hydraulic fracturing with crosslinked-gel fluids. Currently, oil and gas operators are beginning to reuse and recycle the main byproduct of oil extraction, which is produced water. However, because of the high variability of produced-water quality (temporal and spatial), and the high content of total dissolved solids (TDS), the viscosity targets for the fluid can be difficult to achieve. The research described in this paper examines the sensitivity of higher-salinity waters to several variables related to the gel-formation process. The polymer used for the gel fluid was a carboxymethyl cellulose (CMC) derivative, and zirconium (Zr) was used as the crosslinking metal. Rheology experiments were conducted at different pH values, polymer loading, and crosslinker concentrations. The outcome of this research is presented in 3D contour-peak-viscosity maps that can be used by oil and gas operators and service companies to optimize the chemicals that are applied, thus reducing costs.

scholarly journals Potable Reuse of Coalbed Methane-Produced Waters in Developing Country Contexts—Could the Benefits Outweigh the Costs to Facilitate Coal Transitions?

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 154
Author(s):  
Udayan Singh ◽  
Lisa M. Colosi
Keyword(s):  
Cost Effectiveness ◽  
Reverse Osmosis ◽  
Coalbed Methane ◽  
Produced Water ◽  
Health Benefits ◽  
Asia Pacific ◽  
Health Improvement ◽  
Study Region ◽  
Damodar Valley ◽  
Produced Waters

Development of coalbed methane (CBM) projects is critical to the achievement of climate change goals because it will help facilitate coal-to-gas transitions in Asia-Pacific countries with low conventional gas reserves. However, growth in CBM in these regions will necessitate strategic, sustainable approaches to produced water management. We posit that it may be possible to deliver synergistic water, energy, and health benefits by reusing CBM-produced waters as potable water supply in water-stressed coal-bearing regions. The goal of this study is to probabilistically evaluate life cycle costs and benefits of using reverse osmosis to treat CBM-produced water in the Damodar Valley coalfields in eastern India. Two treatment configurations are assessed, namely, centralized, and decentralized (i.e., in-home). We find that both configurations offer good cost-effectiveness based on two separately computed metrics to account for the value of health improvement benefits (i.e., disability-adjusted life years (DALYs) averted or monetized health benefits). We also observe that centralized systems are more cost-effective than decentralized, because they reduce capital cost and use-phase energy consumption per unit-volume treated. Average estimated values for the cost–benefit ratio are <0.5 and 1.0 for centralized and decentralized, respectively. Normalizing by anticipated health benefits, cost-effectiveness metrics are <$30/DALY for the centralized system versus <$200/DALY for the decentralized system. These results are highly sensitive to the value of statistical life and baseline water access. A related analysis taking into account both CBM-produced waters and mine waters revealed that deployment of reverse osmosis (RO) could provide drinking to approximately 3.5 million people over 20 years in the Damodar Valley region. These results have interesting implications not only for the study region but also for other CBM-producing countries experiencing chronic severe water stress.

scholarly journals Hydrogeochemical Characteristics and Water–Rock Interactions of Coalbed-Produced Water Derived from the Dafosi Biogenic Gas Field in the Southern Margin of Ordos Basin, China

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yuan Bao ◽  
Chao An ◽  
Chaoyong Wang ◽  
Chen Guo ◽  
Wenbo Wang
Keyword(s):  
Produced Water ◽  
Ordos Basin ◽  
Atmospheric Precipitation ◽  
Principal Component ◽  
Total Dissolved Solids ◽  
Water Type ◽  
Dissolved Solids ◽  
Gas Field ◽  
Biogenic Gas ◽  
Coal Organic Matter

The hydrogeochemical characteristics of coalbed-produced water can provide insights into the sources of ions and water, the groundwater environments, hydrodynamic conditions, and water-rock interactions of depositional basins. To study the water-rock reaction process and reveal whether there is a microbial activity in the groundwater, a case of the Dafosi biogenic gas field was chosen by testing the ionic concentrations and hydrogen and oxygen isotopic compositions of coalbed-produced water and employing R-type cluster and principal component analyses. The results showed that Na+, Cl − , and HCO3- are the principal ions in the coalbed-produced water, while the water type is mainly a Na–Cl. Due to the hydrolysis of HCO3-, the pH in this region was controlled primarily by HCO3-. As the main cation in water, Na+ contributed substantially to the total dissolved solids. Na+ is also related to the exchange between rock-bound Na+ and Ca2+ and Mg2+ in water or surrounding rocks. The coalbed-produced water’s oxygen isotopes displayed a characteristic 18O drift and enrichment, indicating that the 16O isotope in the water was preferentially exchanged with the coal organic matter. Early evaporation is also contributed to the enrichment of TDS (total dissolved solids) and 18O in the water. The central part of the study area, including the Qijia anticline, was affected by the Yanshanian uplift and denudation and subsequently developed a water-conducting fissure zone and was recharged atmospheric precipitation; these conditions were conducive to the formation of secondary biogenic gas.

scholarly journals Biological Treatability of Low Total Dissolved Solids (LTDS) Using SBR as a Pre-Treatment for Reverse Osmosis

2020 ◽  
Vol 12 (02) ◽  
pp. 135-154
Author(s):  
Sareddy Ravi Sankara Reddy ◽  
Manoj Kumar Karnena ◽  
Satyanarayana Yalakala ◽  
Vara Saritha
Keyword(s):  
Reverse Osmosis ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Pre Treatment ◽  
Biological Treatability

Recycling of refinery and petrochemical effluents employing advanced multi-barrier systems

2012 ◽  
Vol 7 (4) ◽  
Author(s):  
J. Lahnsteiner ◽  
P. Andrade ◽  
R. D. Mittal
Keyword(s):  
Power Plant ◽  
Reverse Osmosis ◽  
Total Dissolved Solids ◽  
Ion Exchanger ◽  
Water Reclamation ◽  
Total Removal ◽  
Dissolved Solids ◽  
Petrochemical Process ◽  
Quality Requirements ◽  
Stringent Quality

The Indian Oil Corporation Ltd. Panipat had to build two water reclamation plants as a response to the demands of the environmental authorities. The plants, which treat secondary refinery and various refinery/petrochemical process effluents, were commissioned in 2006 and 2010 respectively. Advanced multi-barrier systems (including ultrafiltration and reverse osmosis) have been employed in order to meet the stringent quality requirements for the recycling of boiler make-up water. Excellent results with regard to the removal of the major parameters such as total dissolved solids (TDS) and silica have been accomplished, e.g. silica is mainly removed by RO (from 11.6 mg/L in the UF outlet to 0.09 mg/L in the RO permeate (99.2% removal)) and is then reduced further to 0.007 mg/L (7 μg/L; total removal 99.94%) in the mixed bed ion exchanger (20 μg/L is the specified limit for boiler make-up water in various power plant guidelines). Both UF process units have shown relatively good performance. The older UF has been in operation for more than five years with still acceptable permeability values and a relatively low number of fibre breakages.

scholarly journals Application of Moving Bed Biofilm Reactor and Fixed Bed Hybrid Biological Reactor for Oilfield Produced Water Treatment: Influence of Total Dissolved Solids Concentration

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7297
Author(s):  
Nicolas Lusinier ◽  
Isabelle Seyssiecq ◽  
Cecilia Sambusiti ◽  
Matthieu Jacob ◽  
Nicolas Lesage ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Produced Water ◽  
Bacterial Species ◽  
Fixed Bed ◽  
Total Dissolved Solids ◽  
Biofilm Reactor ◽  
Moving Bed Biofilm Reactor ◽  
Dissolved Solids ◽  
Moving Bed ◽  
Oilfield Produced Water

This experimental paper deals with the development of a hybrid biological reactor for the treatment of a synthetic oilfield produced water under an increase in total dissolved solids (TDS) concentration. To comply with strengthening regulations concerning produced water discharge and peculiar produced water compositions, a moving bed biofilm reactor (MBBR) consisting in a combination of free activated sludge and moving biofilm supports was compared to a fixed bed hybrid biological reactor (FBHBR) consisting in a combination of free activated sludge and a fixed biofilm support. After a 216 days experimental period, the MBBR and the FBHBR were efficient to treat a synthetic produced water with chemical oxygen demand (COD) removal rate above 90% under an increase in TDS concentrations from 1.5 to 20 g·L−1. Ecotoxicity measurements on freshwater and marine microorganisms revealed an absence of toxicity on treated waters. A decrease in bacterial diversity indices with respect to the inoculum was observed in both bioreactors. This suggests that the increase in TDS concentrations caused the predominance of a low number of bacterial species.

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