The Remedial Strategies section of your term project addresses emergency response and remedial treatment processes for the decontamination of polluted media that’s been polluted with the chemical benzene. The Transformation section of your report could serve as a guide here as natural transformation processes often present a sound basis for devising engineered treatment schemes. Material covered in Modules 5-7 is essential for this section. Biochemical reactivity is also highly relevant here. Indigenous natural organisms offer an excellent starting point for bioremediation. Although costly, recent advances in molecular biology may also be of great use here. For example, in recent years genetically modified organisms have been successfully used in bioremediation of a variety of contaminants (e.g. petroleum hydrocarbons). Use this Journal to reflect on key aspects of the remediation of various contaminated media (air, water, soil).
In an approximately 250-word entry, respond to the following:
Based on your contaminant’s physical, chemical, and biological properties identify contaminant containment strategies. Comment whether some of these strategies are applicable for emergency response.
Identify physicochemical and/or biological processes that can be used as part of remedial schemes for the treatment of contaminated, air streams, groundwater, and soil.
Compare and contrast in-situ vs. ex-situ treatment schemes.
Comment on non-technical factors (social, cultural, economic, environmental) that may influence your decision to prescribe remedial processes.
Attached within is my group members paper from a previous course pages 9 thru 15 provide a great length of detail and resources for this essay
·Read the Case Study presented on pages 416 through 418 of the textbook (Attached). Read both sides of the argument: “Amend the WTO” and “Process and Production Methods Cannot be Regulated.” After you have read the Case Study, answer the following questions:
·Should the WTO be amended to address the concerns of environmentalists?
·Should process and production methods (PPMs) be regulated?
·What are some fallacies within the Case Study that you recognize?
·What further information could be provided to help you make your decision?
Your case study should be at least two full pages, double-spaced, and in 12-point Times New Roman font. The case study should be written in paragraph form. It does not require a title page or a running header; however, please use APA-style citations and references. The page requirement does not include a cover page (include if you wish but not required) and reference list (required).
What was the enzyme used in this experiment? What was the source of the enzyme? What was the substrate? What was the product formed? How was the rate of catalase activity observed/determined in this experiment?
State a hypothesis for each experimental activity. Based on your hypotheses, you should also Include expected outcomes for each activity.
Import Figures 1 and 2 from your excel file into your Results section and briefly describe trends in your data (without interpreting those data). In your Discussion section, for activity 1, explicitly state the effect catalase concentration had on catalysis. Include the rate values you obtained from your linear scatterplot, for the 30% and 90% catalase concentrations (data table 2). What was the r-squared value for your fitted line? What confidence do you have in the reaction rate values you interpreted for the 30% and 90% catalase enzyme concentrations? For activity 2, explicitly state what the optimum temperature for this enzyme is. What is happening to the enzyme as the reaction mixture temperature approaches 53°C? Cite specific evidence (highlight patterns in data presented in your Results section) to support any conclusions.
Millimoles of hydrogen peroxide
Kilograms of fat
Peroxide Value (PV)
o Hint: In SI units, PVSI= (millimoles hydrogen peroxide)/(kg fat)
Draw 3 tables and 2 figures using the given data:
Tables:
1. For Standard Curve: Tube number, volume of 90:10 methanol:water, volume of hydrogen
peroxide, volume of Fox reagent, nanomoles of peroxide in each tube, and absorbance
reading at 560 nm.
2. For Potato Chip samples: Tube number, Sample type and treatment, replicate number,
absorbance reading at 560 nm, calculated nmol peroxide for each sample, sample weight,
calculated nmol peroxide per gram of chips, and the Peroxide value (in mmolH2O2/kg fat).
a. If your absorbance values are below the lowest standard absorbance, report the
absorbance value in the table with an asterisk (*). You cannot calculate the final
nmol, so put “N/A”.
3. For the Corn Chip samples: Tube number, Sample type and treatment, replicate number,
absorbance reading at 560 nm, calculated nmol peroxide for each sample, sample weight,
calculated nmol peroxide per gram of chips, and the Peroxide value (in mmolH2O2/kg fat).
a. If your absorbance values are below the lowest standard absorbance, report the
absorbance value in the table with an asterisk (*). You cannot calculate the final
nmol, so put “N/A”.
Figures:
1. Standard curve showing the equation of line and goodness of fit (r2 ).
2. Bar chart showing the average peroxide value for each chip and treatment (be sure to
include error bars).
Question 1
Review Appendix A of OSHA’s Process Safety Management (PSM) Standard 29 CFR 1910.119 and determine if your workplace has any chemicals that exceed the Threshold Quantity (TQ) identified in this table. Reflect on how your workplace uses aspects of the PSM to ensure a safe workplace? Do you think that the measures at your workplace achieve safety or merely keep the facility in compliance?
Your journal entry must be at least 200 words. No references or citations are necessary.
Question 2
OSHA issued the Process Safety Management of Highly Hazardous Chemicals Standard (PSM) (29 CFR 1910.119) which contains requirements for the safe management of chemicals for companies that exceed OSHA’s threshold quantities for highly hazardous substances. This standard requires the establishment of a management program that includes conducting process hazard analyses, establishing detailed operating procedures, and includes other important requirements to mitigate the possibility of a serious, chemical related incident occurring at the facility.
For this assignment, suppose you are a safety manager at a chemical manufacturing facility that manufactures concentrated nitric acid. You have heard that employees who load nitric acid into rail tank cars have been checking the pre-inspection checklist from the rail shipping office instead of actually inspecting the vehicles with the checklist in hand as required by the operating procedure. This has not been the first time the shipping crew has been lax about process safety related work rules. Based on this scenario, please compose a research paper which includes the following information:
Identify the chemical properties, uses, and primary hazards associated with common oxidizers including concentrated nitric acid.
Identify important occupational exposure limits (OELs) associated with at least 3 common oxidizers.
Identify PSM requirements that would be useful for preventing or minimizing the consequences of a significant oxidizer related incident.
Using the OSHA Standard and your own experience, justify and validate the importance of the PSM standard to your facility (if it stores and processes highly hazardous materials) or a facility that may impact your community or a near-by community. Examples might include a water treatment facility that utilizes liquefied chlorine gas, a coal fired power plant that utilizes liquefied chlorine gas for water treatment, a food processing plant with a large ammonia refrigeration system, a fertilizer manufacturing or storage facility, a chemical manufacturing facility, etc..
Your research paper must be at least two pages in length. You are required to cite the OSHA Standard 29 CFR 1910.119 in your response as well as at least two other sources, one of which must come from the CSU Online Library. All sources used, including the textbook, must be referenced. Paraphrased and/or quoted materials must have accompanying citations in APA format.
Question 3
Do you live in an area where hydraulic fracturing takes place? What is your position on the health hazards associated with this technology? Do you agree that current regulations are protective to the environment (groundwater) and human health? Why, or why not?
Your journal entry must be at least 200 words. No references or citations are necessary.
Question 4
Your company has been contracted to assess and cleanup a site that previously had a manufacturing facility for an organochlorine pesticide (i.e., aldrin, chlordane, dieldrin, eldrin, or heptachlor). You are tasked with shipping these wastes off-site to a treatment, storage, disposal facility (TSDF) for disposal.
Review the information found in the 16-point GHS SDS for at least two of the organochlorine pesticides detailed in this question. Describe how you would prepare for transport of these materials and ensure proper shipping documentation based on DOT regulations (hazard class, descriptions, labels, markings, and placards). Describe the importance of having these regulations in place when transporting hazardous materials.
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