Lolwa meaning

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School of Engineering

Department of Petroleum Engineering

nvironnemental Protection – Summer 2020

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Topic

Nanotechnology and wastewater treatment

Weekly Report

1

Supervisor:

Dr. Rana Malhas

Student Name:

Loulwah Al-Ajmi

ID

1515808

SPE number

5160957

Section

G4P1

Group Number

A

Date of Submission: Wednesday 8th July 2020

Table of Contents 1.1 Week 1 Tasks: 4 I. Environmental protection 4 II. Types of water pollution 4  Ground Water 5  Surface water 6  Ocean water 6  Point source water pollution 6  Non-point source water pollution 7  Transboundary water pollution 7 III. Conventional wastewater treatment methods 8  Preliminary stage (Screening): 9  Primary stage: 10  Secondary stage: 12  Coagulation & Flocculation 12  Tertiary stage: 13 1.2 Results and discussion 14 1.3 Reflection: 15 1.4 References: 16

List of figures

Figure 1. Groundwater Pollution (Rifshat Islam 2006) 5

Figure 2. Water Pollution Types (Earn 2005) 7

Figure 3. Conventional wastewater treatment process (Sewage) ( Aditya Kumar, 2018) 8

Figure 4.Bar screens Figure 5. Grit Chamber (Dr. Rjaendra Singh 2014) 9

Figure 6. Skimming tanks (Dr. Rjaendra Singh 2014) 10

Figure 7. Sedimentation tank (Quach-Cu,2017) 11

Figure 8. Neutralization step (Scientific Expert 2020) 11

Figure 9.: Coagulation and Flocculation (Félicien Mazille 2019) 12

Figure 10. Tertiary treatment Sharma, N. (2019). 13

1.1 Week 1 Tasks:
Environmental protection
The environment around us is represented by land, water, air, living creatures, microbes, plants and humans and all of them are linked together by a specific ecosystem. Since we are an integral part of the environment, we have to protect what surround us from any imbalance or abnormal phenomena which will cause the disruption in the ecosystem. However, the world is facing many problems in trying to protect the environment, one of those problem is the depletion of potable water or fresh water. Water pollution poses a considerable threat to the ecosystem and sustenance of life. The main reason of all environmental pollutions is the human activity. The human activities are disturbing the environmental balance which will lead to endanger the existence of the life in the earth. In our world, there are excessive amount of water pollution and wastewater which considered to be a challenge in the environmental protection sector. Environmental protection can be defined as the self-restriction to obey the government policies and procedures in order to conserve and protect all the natural resources. Self-restriction can be represented by having the intensity of the environmental awareness to preserve healthy and youthful level of the surrounding natural resources without affecting the standard limitation of polluting the environment. One of the major problems that we are facing today is water pollution. The reason behind taking this problem into a serious scenario is because the water is covering almost 71% of the earth surface and the oceanic water represent almost 96.5% of Earth’s water. It includes water bodies like ocean, rivers, lakes, ponds and streams. (Earn, M. 2005)

Types of water pollution
Today, water pollution has a significant effect on the environment this is because there almost 80% of the waste water is dumped back into the fresh water sources and pollute the environment which will lead to have unhealthy ecosystem because of the untreated water. All types of water pollution will be jeopardizing the human health, not only the human health, but the life of all the leaving creatures on our planet. First of all, water pollution happens when the unwanted or toxic materials usually microorganisms or harmful chemicals enters the water body sources. Water pollution can be classified into many types or categories, starting with the ground water (Earn, M. 2005)

· Ground Water