Bacta Cult (MLSS Debulking) is a product which has to be added in Extended Aeration tank or Aeration tank when one is facing the problem of SVI (Sludge Volume Index) Bulking of Bacteria or which simply means the bacteria had become weak or have an increase in its mass (bulking). The One way of measuring MLSS at site condition is by taking known quantity of MLSS on a filter paper and measures its weight, so we get a weight in mg/L or ppm, this is the Laboratory method of measuring. Another method is that we take effluent in a 1000 ml graduated cylindrical beaker and allow the effluent to settle and hence the Biological sludge is allowed to settle within a period of 20-30 minutes, this method is the Volumetric method. By the end, we get clear supernatant on the top and the Bio logical sludge had settled down at the bottom of the graduated cylindrical beaker. This Settling of the sludge is its natural property of bacteria and is solely dependent on the health of the bacteria. If we look at the bacteria in a microscope, they are rod shaped or circular in physical look. However, due to lack of food or lack of oxygen these bacteria gets transformed into bulky bacteria and its efficiency goes down. By weight it is the same i.e. mg/L or ppm but by Volumetric test i.e. the second method of taking effluent in a cylindrical beaker, the MLSS reached upto 500 ml of the beaker i.e. 50% or 60% or sometimes even 90%. So this is a clear indicator of Health of the bacteria, when the health of the bacteria is poor, sludge bulking happens So, the main reason for sludge bulking is the rapid growth of filamentous bacteria. The filamentous bacteria are the same bacteria which were present in the system before however they have developed Cilias or Flagella on their body. When you look at it in a microscope it has got developed into a wire -mesh or network kind of structure, which means the surface area of the bacteria has increased and hence it has become bulky. There are only two ways of removing the Filamentous bacteria from the system, one by killing the Filamentous bacteria and other by introducing fresh species of healthy and strong bacteria into the system. Killing the Filamentous bacteria is a difficult preposition since the effluent contains healthy + Filamentous bacteria and hence it becomes a very skilled job. Sodium hypo chloride is normally used to do this since it is a disinfectant.
Taxonomy
- Waste Water Treatments
- Wastewater Treatment
- Waste, wastewater, air, chemical engineering
- Water & Wastewater Treatment
- Wastewater Treatment Chemicals and Consulting
- waste water bacteria