ETP STP ZLD

  • The waste generated in the form of effluents or liquid by industrial & domestic areas are treated by various technologies to obtain the water quality for application of reuse the treated effluents
  • We design the process or scheme on a detailed study of effluents to perfectly design a solution to treat any effluent

CLASSIFICATION OF WASTEWATER TREATMENT PROCESS

This classification is depending on Raw Water quality and its application

  • Effluent Treatment Plant
  • Sewage Treatment Plant

EFFLUENT TREATMENT PLANT

  • The effluent generated from the industrial area is considered to use for Effluent Treatment Process
  • The treated effluent parameters are dependent on the inlet conditions. The fluctuations in the influent conditions will affect the quality of the treated water, and the operating cost involved therein
  • It is most important to study the effluent water analysis & different streams with their respective analysis contributing to the total effluent

TREATMENT PHILOSOPHY

PRIMARY TREATMENT

  • Mech. Fine Screen
  • Equalization Tank with Oil Skimmer
  • Oil Separator
  • Flash Mixer with primary clarifier

SECONDARY TREATMENT

Equipments / Technologies to be chosen depending on type & quality of effluent

  • Aerobic Treatment
  • Anaerobic Treatment

TERTIARY TREATMENT & RECYCLE OF WATER ULTIMATELY ZLD

  • High Rate solid contact clarifier ( HRSCC) for the settling of hardness & silica by lime softening process & dolomite dosing.
  • MGF Feed Tank/Chlorine Contact Tank
  • Multi Grade Filter
  • Activated Carbon Filter
  • Ultrafiltration
  • Reverse Osmosis
  • Reject Reverse Osmosis
  • Multi-effect Evaporator in combination with ATFD/centrifuge
  • Filter Press/Decanter as suitable for application

SEWAGE TREATMENT PLANT

The wastewater generated From Domestic Area Like Kitchen, Washroom Waste Etc. In Sewage Treatment Plant we can offer various technologies like:

In Sewage Treatment Plant we can offer various technologies like:

  • FMR - Fluidised Media Reactor
  • PSTP - Using Sequential Batch Reactor (SBR)
  • PSTP - Using Membrane Bio-Reactor (MBR)
  • NGSTP USING BMS (BL)

FMR- FLUIDISED MEDIA REACTOR

The FLUIDISED MEDIA REACTOR (FMR) is designed as a single tank unit, incorporating a bar screen chamber, specially developed synthetic media to facilitate attachment to the growth process, oxygen transfer to diffused membrane aeration, a lamella settler, and a chlorine contact tank for disinfection.

Features

  • Single tank Design
  • 1/3 space of conventional Sewage Treatment Plant
  • Uses high porosity moving media for bacteria to grow
  • Useful for modification/capacity extension of the existing sewage treatment plant

Advantages

  • Minimum Land Uses
  • Minimum Power & chemical Requirement
  • Low operating cost

Basicprinciple

Flock-forming organisms form clusters or attach to available surfaces. The FMR carrier material allows high biomass concentrations per cubic meter of material, which:

  • Increases the specific volumetric capacity of activated sludge tanks
  • Controls biomass activity
  • Reduces operating cost

THE FMR TECHNOLOGY IS A SINGLE TANK DESIGN UNIT INCORPORATING

  • A bar screen
  • A specially designed tank with synthetic media
  • A lamella settler
  • A chlorine contact tank

FMR is best suitable when,

  • Designing a new wastewater treatment plants when operating cost & space are constraints
  • Upgrading of existing wastewater treatment plants
  • Operate plants in low-temperature areas
  • Reduce bulking problems in existing treatment plants

Flow Diagram

NGSTP USING BMS (BL)

Introduction

The New Generation PSTP is the most compact "all in one" system available. The civil works are minimal, consisting of a flat concrete support slab the plan area of the unit constructed is 1.4 meters below the invert of the incoming pipe. The units are fully covered preventing noise and fly nuisance. It is a modular unit that lends itself to future expansion or relocation.

TREATMENT

  • Bar Screen
  • Sewage Transfer
  • Primary Settlement
  • Aerobic Treatment
  • Final Settlement
  • Sludge Storage

POST TREATMENT

  • Sodium Hypochlorite Dosing System
  • Filtration

MEMBRANE BIOREACTOR ( MBR)

Integrated permeate channel MEMBRANES (IPC) are the first fully back washable flat sheet membranes. they are specially designed as high-performing membranes for MBR applications. IPC membranes allow operating wastewater units at an extraordinary higher flux yield, lower footprints, and substantially low energy demand.

FEATURES OF IPC MBR

  • Operates at higher flux rates 15 - 40 LMH
  • Due to High Flux operation, the system requires a lower membrane area with substantial Energy reduction
  • Compact Modular construction and design
  • Robust PVDF membrane material
  • Lower chemical consumption and high membrane life

Flow Scheme for MBR :

SBR (SEQUENCING BATCH REACTOR)

SBR is a cyclic activated sludge treatment system. Its compact design based on the sequencing time cycle for equalisation, aeration, settling, and clarification provides many advantages over the conventional activated sludge process

Operating Principal:

FEATURES OF SBR:

  • No moving parts
  • A process like nitrification, organic matter removal, settling, or clarification is carried out sequentially over time in a tank
  • Fewer footprints, as clarifier is not required
  • Fluctuation is buffered in a pre-equalization tank, therefore producing consistent treated effluent quality
  • Treated effluent of highest quality BOD <10, COD <100, TSS <5.
  • Can be constructed in the bolted tank, mild steel epoxy paint, and civil