Posted: September 13th, 2017
Pollution Solution
Paper, Order, or Assignment Requirements
There is some data and the writer must do graphs and the P value. I will upload the whole description in the brief.
Scenario
Among hydrocarbon pollutants, diesel oil is a complex mixture of alkanes and aromatic compounds that frequently are reported as soil contaminants leaking from storage tanks and pipelines. One of the best approaches to restoring contaminated soil is to make use of micro organisms able to degrade those toxic compounds in a bioremediation process.
An old disused airfield (approx 15000 m2) has been identified as having hydrocarbon contamination; however the extent of the contamination has not yet been confirmed. The hotspot has been identified as a circular area of approx. 50m2.
(Assumption is that the contamination is limited to soil only). It has been suggested that the site may be used for the development of residential properties.
Task 1
Suggest a suitable sampling regime for this area. Your regime should identify
• No of sampling points
• Sampling depth
• Sampling pattern.
(30%)
Task 2
Having undertaken initial trials using in situ biostimulation and bioaugmentation you have obtained the results as observed in Table 1. Produce a report presenting these results to the developer explaining (graphically and statistically) which method worked best.
(30%)
Task 3
In addition to reporting the results you have also been asked to produce a scientific review of both techniques outlining previous research (both field and lab based), highlights and limitations.
(40%)
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INSTRUCTIONS
Answer the following question.
Word Limit: 2000 words excluding tables and diagrams
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Scenario
Among hydrocarbon pollutants, diesel oil is a complex mixture of alkanes and aromatic compounds that frequently are reported as soil contaminants leaking from storage tanks and pipelines. One of the best approaches to restoring contaminated soil is to make use of micro organisms able to degrade those toxic compounds in a bioremediation process.
An old disused airfield (approx 15000 m2) has been identified as having hydrocarbon contamination; however the extent of the contamination has not yet been confirmed. The hotspot has been identified as a circular area of approx. 50m2.
(Assumption is that the contamination is limited to soil only). It has been suggested that the site may be used for the development of residential properties.
Task 1
Suggest a suitable sampling regime for this area. Your regime should identify
- No of sampling points
- Sampling depth
- Sampling pattern.
(30%)
Task 2
Having undertaken initial trials using in situ biostimulation and bioaugmentation you have obtained the results as observed in Table 1. Produce a report presenting these results to the developer explaining (graphically and statistically) which method worked best.
(30%)
Task 3
In addition to reporting the results you have also been asked to produce a scientific review of both techniques outlining previous research (both field and lab based), highlights and limitations.
(40%)
Table 1: Results for laboratory trials.
| Initial TPH mg kg-1 | Post Biostimulation
(mg kg-1) |
Post Bioaugmentation and Biostimulation (mg kg-1) |
| 2596 | 1713.36 | 1116.28 |
| 2198 | 1450.68 | 945.14 |
| 2298 | 1493.7 | 1011.12 |
| 2356 | 1578.52 | 1013.08 |
| 2643 | 1712.1 | 1106.28 |
| 2601 | 1742.67 | 1118.43 |
| 2587 | 1707.42 | 1112.41 |
| 2568 | 1694.88 | 1078.56 |
| 2579 | 1624.77 | 1057.39 |
| 2458 | 1671.44 | 1032.36 |
| 2457 | 1621.62 | 1056.51 |
| 2301 | 1518.66 | 989.43 |
| 2265 | 1517.55 | 951.3 |
| 2365 | 1554.96 | 989.52 |
| 2451 | 1593.15 | 1029.42 |
| 2354 | 1530.1 | 1012.22 |
| 2098 | 1342.72 | 965.08 |
| 2069 | 1365.54 | 931.05 |
| 2358 | 1556.28 | 1061.1 |
| 2658 | 1780.86 | 1142.94 |
| 2516 | 1654.72 | 1081.88 |
| 2548 | 1656.2 | 1095.64 |
| 2503 | 1651.98 | 1101.31 |
| 2354 | 1506.56 | 1035.76 |
| 2156 | 1401.4 | 970.2 |
| 2258 | 1512.86 | 1038.68 |
| 2134 | 1451.12 | 938.96 |
| 2168 | 1409.2 | 932.24 |
| 2780 | 1393.92 | 936.54 |
| 2234 | 1474.44 | 938.28 |
| 2268 | 1496.88 | 1116.28 |
| 2256 | 1511.52 | 945.14 |
Assessment Criteria
GRADE CRITERIA: Credit level 2 |
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| An outstanding Distinction | A+ | 80-100 | Work which fulfils all the criteria of the grade below, but at an exceptional standard |
| A very strong Distinction | A | 75-79 | Work of distinguished quality which is based on a rigorous and detailed knowledge base, including major theories of the discipline(s) and awareness of the variety of ideas, contexts and frameworks and the wider implications. Work will demonstrate sustained ability to analyse, synthesise, evaluate and interpret concepts, principles and data within field of study in a considered manner, as well as to develop authoritative arguments and judgements through application appropriate to the field of study/ assessment task. There will be strong evidence of competence across a range of specialised skills using them to plan and develop and evaluate problems solving strategies, to challenge received opinion and develop own judgements. Clear evidence of capability to operate autonomously with minimal guidance in situations of varying complexity and predictability, but within defined guidelines will be demonstrated. Outputs will be communicated effectively, accurately and reliably.
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| A clear Distinction | A- | 70-74 | Work of very good quality which displays most but not all of the criteria for the grade above.
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| A Distinction
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B+ | 67-69 | Work which clearly fulfils the criteria for the grade below, but shows a greater degree of capability in relevant intellectual/subject/key skills.
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| A very strong Merit
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B | 63-66 | Work of commendable quality based on a strong detailed knowledge base for the field of study, including an assured grasp of concepts, principles and major theories, together with effective deployment of skills relevant to the discipline and assessment task. There will be evidence of considered analysis, synthesis, evaluation and application, and the ability to work effectively with minimum direction to meet defined objectives and develop own judgements. There will be consistent evidence of capability in all relevant subject based and key skills, including the ability to self-evaluate and work autonomously with minimal direction to use effectively a range of techniques in situations of varying complexity and predictability |
| A strong merit
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B- | 60-62 | Work of good quality which contains most, but not all of the characteristics of the grade above.
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| A clear Merit | C+ | 57-59 | Work which clearly fulfils all the criteria of the grade below, but shows a greater degree of capability in relevant intellectual/subject/key skills. |
| A Merit | C | 53-56 | Work of sound quality based on a firm factual/ conceptual knowledge base for the field of study, including a good grasp of relevant theories, together with the ability to organise and communicate effectively. The work may be rather standard and limited in its theoretical grasp, but will be mostly accurate and provide some evidence of the ability to analyse, synthesise, evaluate and apply standard methods/techniques, with minimal guidance. There will be no serious omissions or inaccuracies. There will be good evidence of ability to take responsibility for own learning, some capability to challenge received opinion and form own judgements. Evidence of the ability to operate with increased autonomy in situations of varying complexity and predictability, selecting and applying appropriate techniques will be demonstrated within limits. There will be competence in relevant key skills.
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| A very strong Pass | C- | 50-52 | Work of capable quality which contains some of the characteristics of grade above.
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| A strong pass
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D+ | 47-49 | Work of satisfactory quality demonstrating a reliable knowledge base and evidence of developed key skills and/or subject based skills, but still containing limited evidence of analysis, synthesis, evaluation or application, or of appropriate detail or skill application.
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| A Pass
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D | 43-46 | Work of broadly satisfactory quality covering adequately the factual and/or conceptual knowledge base of the field of study and some key theories, appropriately presented and organised, but is primarily descriptive or derivative, with only occasional evidence of analysis, synthesis, evaluation or application. There may be some misunderstanding of key concepts/principles/theories and limitations in the ability to select relevant material or techniques and/or in communication or other relevant skills, so that the work may include some errors, omissions or irrelevancies. There will be evidence of ability to operate with some autonomy in predictable contexts, but less evidence of ability to operate in more complex or unpredictable situations. However, there will be evidence of ability to use a variety of standard techniques, and to meet threshold standards in relevant key skills.
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| A bare Pass | D- | 40-42 | Work of bare pass standard demonstrating some familiarity with and grasp of a factual/conceptual and theoretical knowledge base for the field of study, together with evidence of some ability to employ specialist skills to solve problems within area of study, but only just meeting threshold standards in eg evaluation and interpretation of data and information, reasoning and soundness of judgement, communication, application, or quality of outputs. Work may be characterised by some significant errors, omissions, limitations or problems, but there will be sufficient evidence of development and competence to operate in varied contexts taking responsibility for the nature and quality of outputs. |
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