... in the produced water. Two biocides (THPS and glutaraldehyde), as well as the H₂S scavenger, and combinations of biocides with H₂S scavenger, were each tested on an active biofilm in five different dosages ( Table 1 ); with 14 to 16 replicates of each. Table 1 Biocide test matrix...

... (THNM:DBNPA) GA+QAC PAE C (GA:DMO) THNM PAE D (THPS:THNM^*) CTAC 50,150, 250 PAE E (THPS:THNM (RR)) THPS 112.5,187.5, 250 PAE F (THPS:CTAC) DMO 100, 200, 300 PAE G (THPS:DMO) Glutaraldehyde (GA), 2-hydroxymethyl-2-nitropropane-1,3-diol (THNM), 2, 2-Dibromo-3...

...Standard oilfield application concentrations of each biocide (ADBAC: 100 ppm; TTPC: 100 ppm; glutaraldehyde: 200 ppm) were added to a brine solution (3% NaCl) representative of a recycled produced water injection fluid. Biocide adsorption studies began following the addition of 1g of crushed...

.... Non-oxidizing biocides can be further categorized into three sub-groups: membrane active (quaternary ammonium and tetraalkyl phosphonium based), fast reactive (glutaraldehyde, dibromo nitrilopropionamide, and tetrakis(hydroxymethyl) phosphonium sulphate), and slow reactive or preservative-type...

.... A two-part biocide treatment strategy has been extensively evaluated in controlled laboratory studies. The synergistic combination treatment involves the co-injection of dimethyl oxazolidine (DMO), along with the industry benchmark glutaraldehyde (GLUT). Laboratory testing showed a combination...

...% (v/v) of glutaraldehyde (Glut) was prepared. A super-oxidized water (hypochlorous acid solution) of 5-30 ppm was prepared. 10ml bacterial suspensions were added to 100ml of biocide solution (1/10) and mixed for 1 minute. Samples were taken to measure standard plate counts (plate count method...

...Abstract Sustainability is a key aspect for innovating new microbial control treatments in gas and oil water treatment applications. In this study, several new glutaraldehyde-based formulations have been developed with ingredients that are synergistic with glutaraldehyde and complement...

... Glutaraldehyde Biocide Scavenger Inhibitors Pigging Subsea Gulf of Mexico Hurricane Ike Seawater Sand Coupon Cut-Out INTRODUCTION The earlier paper provided an overview of the methodology by which the trunkline and the lateral to ST-200 were dewatered. ^{1 , 2} Basically, a pig was placed...

... and recommendations related to “dry” and “wet” lay-ups, including filtration requirements and specific treatments for oxygen scavengers, biocides, and corrosion inhibitors. Hydrostatic Pressure Test biocide glutaraldehyde THPS Sulfate Reducing Bacteria SRB corrosion inhibitor oxygen scavenger ammonium...

... THPS Glutaraldehyde Biocide Scavenger Pipeline Integrity Threats Internal Corrosion Inhibitors Pigging Subsea Gulf of Mexico Hurricane Ike Seawater POST-IKE ASSESSMENT AND PIPELINE REPAIRS Figure 1 depicts the offshore gas pipeline system within the Gulf of Mexico. While Hurricane Ike...

...-oxidizing biocides, including chloromethyl/methylisothiazolones, glutaraldehyde, DBNPA (dibromonitrilopropionamide), bromonitropropanediol (bronopol), quats, and dithiocarbamates. ^{1 , 2 , 3 , 4} Many common treatment programs employ non-oxidizers in conjunction with standard oxidant programs...

... The use of glutaraldehyde for decontamination and preservation of water systems involves important considerations relevant to its ecotoxicity profile, biodegradation properties and safe handling and storage guidelines. This paper will review the comprehensive data set from ecotoxicity studies for aquatic...

... of these laboratory studies. Legionella non-oxidizing biocide biofilm protozoa amoebae glutaraldehyde DBNPA Isothiazolone polyquat carbamate INTRODUCTION Table 3 summarizes the results of various studies for the efficacy of CMIT/MIT and other isothiazolones. A couple of early studies for CMIT/MIT...

... stabilized bromine chloride sodium bromide activated sodium bromide chlorine bleach BCDMH minimum biofilm eradication concentration MBEC Calgary Biofilm Device CBD glutaraldehyde isothiazolone quaternary compound polyquat INTRODUCTION Legionella pneumophila, the bacteria responsible...

... with glutaraldehyde slug doses. Treatment one consisted of 1 ppm active isothiazolone continuously dosed (at a cycle of 30 minutes on / 60 minutes off) plus a 200 ppm active glutaraldehyde slug dose (4 hours per week). Treatment two consisted of 1 ppm active isothiazolone continuously dosed (at a cycle of 75 minutes...

...biofilm biocide minimum biofilm eradication concentration MBEC Calgary Biofilm Device CBD sodium bromide activated sodium bromide chlorine glutaraldehyde isothiazolone quaternary compound polyquat hydrogen peroxide peracetic acid tetrakis(hydroxymethyl)phosphonium chloride...

... of four different nonoxidizing biocides against several different protozoa, while there are several other reports on the efficacy of other oxidizing and nonoxidizing biocides against amoebae. ^{16 , 17} Glutaraldehyde was not used in any of the earlier studies and as such its effectiveness...

...Effect of Glycols We also investigated the use of ethylene and propylene glycol as freeze protecting agents. Our concerns in this case again centered over the formation of acetals between the glutaraldehyde and the glycol. In order to test the affect of glycol on glutaraldehyde, solutions...

... and unpolished AISI 304 stainless steel surfaces with glutaraldehyde on the attachment, growth and morphology of an aerobic consortium of marine bacteria was investigated using total cell number counts, epifluorescence microscopy, Atomic Force Microscopy (AFM), Environmental Scanning Electron Microscopy (ESEM...

... contaminants which are present in the actual system are also present in the model biofilm system. In all cases, the organisms contained within the artificial biofilm were significantly more difficult to kill than the corresponding planktonic microbes. alginate biocide biofilm glutaraldehyde microbially...