Recommended Sewage Treatment Plants for Apartments

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Sewage Treatment Plant with opened or partially closed is not recommended for apartment or densely populated areas. In this system smell can be sensed for miles. This system is only useful for large sewage treatments. For small residential units a completely sealed package unit is recommended.

Sewage compartments with methane gas should be located away from car parking or area that can cause ignition or spark. Any ignition or spark can easily catch fire in sewage compartments with methane gas. For apartments or for small residential units, automated system is recommended as this will reduce maintenance cost. Disadvantage of manually operated system is, there are chances of human error of dry running the pumps or not starting pumps in time. This can result in machinery breakdown or overflow of sludge.

The system release methane. This is supposed to be in sealed chambers and then released at a point few meters above the tallest point of the building. This should be taken care while designing sewage treatment plant for apartments or high-rise. In Metropolitan cities and urban areas, sewage treatment plant or mini sewage treatment plant is mandatory for getting a new water connection. Sludge Treatment Sludge produced by sewage treatment is organic in nature and contain useful amounts of plant nutrients such as nitrogen, phosphorus and essential trace elements. The first objective should be to utilize the sludge as a fertilizer or soil conditioner on agricultural land. Sludge is treated using a variety of digestion techniques, the purpose of which is to reduce the amount of organic matter and the number of disease-causing microorganisms present in the solids.

The most common treatment options include anaerobic digestion, aerobic digestion, and composting. Anaerobic digestion generates biogas with a high proportion of methane that may be used to both heat the tank and run engines or microturbines for other on-site processes. In large treatment plants sufficient energy can be generated in this way to produce more electricity than the machines require. Anaerobic digestion is a bacterial process that is carried out in the absence of oxygen. Aerobic digestion is a bacterial process occurring in the presence of oxygen. Under aerobic conditions, bacteria rapidly consume organic matter and convert it into carbon dioxide.

Once there is a lack of organic matter, bacteria die and are used as food by other bacteria. Composting is also an aerobic process that involves mixing the wastewater solids with sources of carbon such as sawdust, straw or wood chips. In the presence of oxygen, bacteria digest both the wastewater solids and the added carbon source and, in doing so, produce a large amount of heat. Role of bacteria In the typical sewage treatment plant, oxygen is added to improve the functioning of aerobic bacteria and to assist them in maintaining superiority over the anaerobes.

Aerobic bacteria require oxygen for life support whereas anaerobes can sustain life without oxygen. Facultative bacteria have the capability of living either in the presence or in the absent of oxygen. Microorganisms and their enzyme systems are responsible for many different chemical reactions produced in the degradation of organic matter. As the bacteria metabolize, grow and divide they produce enzymes. These enzymes are high molecular weight proteins. All treatment plants should be designed to take advantage of the decomposition of organic materials by bacterial activity.


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Shubham has 1 articles online

Sewage Treatment Plant is becoming ever more critical due to diminishing water resources, increasing waste-water disposal costs, and stricter discharge regulations that have lowered permissible contaminant levels in waste streams. Effective waste-water collection and treatment are of great importance from the standpoint of both environmental and public health. In recent years, there has been growing interest in waste-water reuse as a major component of water demand management.

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Recommended Sewage Treatment Plants for Apartments

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This article was published on 2011/05/18