Waste Water Treatment

Sewage water

Water collected from toilets and kitchens
SEWAGE TREATMENT PLANT

DESIGN PARAMETER:
Average daily flow: m3/day
Peak flow: m3/hr
Raw BOD concentration: mg/L
Raw SS concentration: mg/L
BOD load: kg/day
Process: Extended aeration
Effluent quality after secondary & tertiary treatment

PROCESS DESCRIPTION
The raw sewage gravitates to the lift station after which it is pumped to the sewage treatment plant. The pumps are automatically alternated to ensure equal running time of the pumping units.
The sewage treatment plant works on the principle of an activated sludge extended aeration process.
In the aeration tank, the raw sewage is adsorbed / absorbed by the microorganisms in the mixed liquor.
Submersible aerator provides air for mixing and oxygen respiration of microorganisms in the mixed liquor.
The mixed liquor flows, after an aeration period of approximately 21 hours to the clarifier through the inlet opening at which a baffle is situated to divert the flow downstream.
The sludge settles to the bottom of hopper and then returns by a sludge transfer pump back into the aeration tank.
The clear effluent flows by gravity over a V-notch weir to the Chlorine Contact Tank.
To control the concentration of MLSS in the aeration tank, periodically sludge has to be discharged from the system.
This is achieved by diverting some of the returned sludge into a sludge tanker.
Chlorine is injected in the treated effluent in order to destroy the bacteriological matters.

TERTIARY SYSTEM
Water from the Chlorine Contact Tank is pumped through the pressure filter in which the suspended solids and BOD present are removed.
Periodically, as the pressure drops across the filter increases, the filter has to be backwashed with filtered water from the treated effluent holding tank using the backwash pump.

Gray Water System

PROCESS DESCRIPTION

aste water from basin and bathtub is collected in grey water collection tank.
Chlorine added by tablet chlorinator and large dirty are removed through bar screen before entering in grey water collecting tank.
Waste water (gray water) is pumped by filter feed pumps to multimedia filters and adsorption filter .
pH & coagulation is inject before entering multimedia filters to remove suspended solids. After filtration, treated water is disinfected and die is added to make different from normal water utility water before storing in treated water tanks.

Design parameter:
Average daily flow Average hourly flow Effluent Quality after Treatment: Treated grey water for Irrigation or flushing the toilets

System components:
Bar Screen Filter Feed / Backwash Pumps Coagulant Injection System Disinfection System PH Adjustment Injection System Sand Filter Adsorption Filter (Activated Carbon) Control Panel Electrical Cabling PVC Pipework and Valves

Advanced Wastewater Treatment

ELCTRO CHEMICAL MARINE SYSTEM Globe Well MARINE SYSTEM:

TREATMENT CAPABILITIES:

Black water and Grey water mixed or independent streams.


FEATURES:

THE PROCESS:

The process utilizes a non-biological treatment Process (Advanced Oxidation Process) These include a primary solids separation, removal of suspended solids and grease as well as Biochemical Oxygen Demand BOD5 and Faecal Coliform Concentrations Considerably less.


H2O + NaCl CO2 + H2O *(IONIZATION) ?( OXIDATION) HCl + ClO? + Cl? + O2 ? + ORGANIC


THE MAJOR SYSTEM COMPONENTS:

  • Primary screening vessel.
  • Solid separation/oxidation/disinfections vessel.
  • Filter vessel for SS and BOD reduction.
  • Sludge Holding Tank.
  • Electrolyte solution tank for sodium chloride (Na cl), if the vessel is working in rivers with sweet water. All these modular component with it’s control and pumps will be assembled together as a skid mounted module or separate Vessels to meet the specific vessel requirement or design constraints. 
    All the associated plumping is made of a Marine quality approved materials.

INDUSTRIAL WASTE WATER TREATMENT

Globe Well systems cover the following industrial wastewater: Municipal wastewater treatment Pulp and paper industry Food industry Chemical industry Fish Farms Steal and engineering industry