Unit III Project


Industrial and Hazardous Waste Treatment

Michael C Adams

Columbia Southern University











Management Considerations

            Waste treatment involves three processes that is chemical, physical and biological which are demanding in terms of resources. It is clear from the budget that the treatment process requires finance as well as other considerations so as to run a treatment plan. The biological aspect of treatment is achieved through licensing and chemical waste treatment so as to ensure that no health hazard is posed to the community as well as the surrounding environment.  

Physical and chemical treatment of wastes is demanding in terms of workers equipment and the operations to be undertaken for it to be a success. Different processes and operations are carried out so as to process wastes for energy and material recovery. The selection of the unit of operations and systems is dependent on the nature of the wastes. Different wastes are hazardous to the environment and therefore chemical treatment is necessary to reduce the emissions which are normally toxic. Chemical treatment requires highly trained professionals in the chemical fields. Waste treatment process incorporates all levels of qualifications from the low skilled to carry out most of the manual works and the highly skilled to supervise so that the treatment may be a success. A valid license is required from the department of environmental management during the treatment of solid waste. A license is given upon supervision of the site by the agency, if the agency is not satisfied then the activity will be upheld until compliance is achieved. The waste and treatment division also checks the level of hazards so as to give certifications to continue with the process of treatment.

            To determine the efficiency of the investment which as discussed requires various resources, return on investment should be considered. The formula to be applied is:

ROI = Net Income (NI) / Investment (I)

NI = Gross Profit – Expenses

I = Stock + Market Outstanding + Claims

ROI = (1,000,000 – 500,000) / (2,000,000 + 5% of 2,000,000)/5


                                        = 1.04

Physical Treatment

According to (Hollysys (Asia Pacific) Pte Ltd, n.d.) water Treatment Industry project requires a Biological contact oxidation (BCO) scheme as a type of submerged biofilm practice. Unused water comes into contact with the biofilm on the filler. There are microorganisms in the biofilms; hence through immersed aeration organic filter/ biological contact oxidation tank, biofilm-covered fillers submerge in the wastewater. When biofilms and wastewater meets the organic matter are absorbed in the water by the micro-organic elements followed by, oxidization and degradation into new biofilms. Later, the disconnected biofilms from the filler move alongside water to the secondary sedimentation tank, and exits as the remaining water purify. There is oxygen requirement in the contact oxidation tank, for the micro-organisms comes from the water, hence air supplementation into the water to compensate for the loss of the dissolved oxygen through a perforated air pipeline at the foot of the tank. The air froths rise in the water as a process of the oxygen dissolution into the water proceeds, and sometimes the water yields by the same quota.

For biological oxidation, a big volumetric tank that offers oxygenation state and also offer measurement of bio-solids consistent with the filling capability of the tank. It supplies simple process and managing mechanisms. The bio-solids capacity is bulky the water mixes totally in the oxidation tank due to its sturdier adaptableness to the rapid fluctuations of water magnitude and value. The system is considered efficient because it enables getting rid of water borne diseases, toxicity as well as dissolves carbon resulting in high quality water.



Al-Salem, S. M., Lettieri, P., & Baeyens, J. (2009). Recycling and recovery routes of plastic solid waste (PSW): A review. Waste Management29(10), 2625-2643.

Rahardyan, B., Matsuto, T., Kakuta, Y., & Tanaka, N. (2004). Resident's concerns and attitudes towards Solid Waste Management facilities. Waste Management24(5), 437-451.  

Feedback to Learner 7/16/19 1:50 PM


Please review the instructions for this project. You should be adding the new section to your previous work each week. The management section of this proposal does not include the correct calculation. Please use the interactive model, and include the necessary data, in the physical treatment section.