Pure Aqua (Wastewater Treatment Systems) 2020-12-04T10:02:21+01:00

Wastewater Treatment Systems

pure aqua wastewater treatment systems - containerised

Containerized Membrane BioReactor Wastewater Treatment System (MBR-C)

Daily Capacity Range:

13,000 to 15,199 GPD

(50 to 190 M3/hr)

  • 40′ and 20′ High Cube (HC) Containers
  • Insulated Container Walls
  • Zero Water Leakage

MBR-C Process Description

MBR-C is a containerized MBR which utilizes hollow fiber (HF) ultrafiltration (UF) membranes with nominal pore size of 0.04 µm. In a typical MBR-C system, feed water passes through a drum screen to mitigate suspended solids and protect membranes’ surface. Water is then transferred to a bioreactor where microorganisms decompose organic content to mineral constituents of CO2, H2O, and inorganic nitrogen products at ambient temperature. Thereafter, water overflows to membrane tank(s), where UF membranes achieve complete retention of bacterial flocs, suspended solids, small colloids, and viruses.

Submerged HF Membrane Technology

MBR-C utilizes submerged membrane module (SMM) products featuring the best-in-class thermally induced phase separation (TIPS) polyvinylidene difluoride (PVDF), innovative modules, and skid designs to provide the most compact, simple, and reliable solution. SMM products are typically implemented in MBR applications treating municipal and industrial wastewaters. They are designed to effectively meet the needs of customers designing a new facility or replacing existing skids of any other manufacturer. 

Containerized Membrane Bioreactor (MBR-C) Process Flow Diagram

membrane bioreactor wastewater treatment system mbr process flow diagram

Advantages of MBR-C

MBR-C provides numerous advantages over all known biological treatment processes presently in use:

– ENHANCED MEMBRANE TECHNOLOGY
  • TIPS spinning method → high tensile strength and long lifetime
  • PVDF membrane material → higher chlorine tolerance compared to other membrane materials (e.g., PES)
  • High packing density → fewer skids, smaller footprint, and higher productivity
  • Patented air scouring technologies → low energy consumption
  • Extreme caustic and oxidant tolerance → suitable for challenging applications
  • Dense crystalline and monolithic structure → direct integrity testing capability
– ECONOMY
  • Integration of bio-treatment and membrane filtration eliminates the need for sedimentation tank and allows for compact design and installation.
  • Minimal pumping requirements reduces equipment and operational costs.
  • Lower sludge production rate, due to higher sludge age (i.e., SRT), compared to conventional activated sludge processes results in savings on disposal expenses.
– SMALLER AERATION TANK AND FOOTPRINT
  • High mixed liquor suspended solids (MLSS) concentration and volumetric loading rate translate into compact footprint.
– WATER OF SUPERIOR QUALITY
  • Membranes are capable of retaining activated sludge at high MLSS concentrations, leading to more effective BOD and nitrogen removal.
  • UF membranes are capable of removing small colloids and viruses in addition to suspended solids and bacterial flocs.
– EASE OF OPERATION AND MAINTENANCE
  • MBR-C can operate largely unattended with the exception of occasional routine performance checks and maintenance of mechanical components.
  • Segregated bioreactor and membrane tanks will allow for easy operation and maintenance.

Typical performance for sewage wastewater applications

Parameter

Feed Water Quality

Expected Permeate Quality

pH

6.5-7.5 S.U.

6.5-7.5 S.U.

Alkalinity (as CaCO3)

125 mg/L

≥100 mg/L

Temperature Range

20-30°C

20-30°C

TSS

200

<5 mg/L

Biochemical Oxygen Demand (BOD)

250

< 10 mg/L

Chemical Oxygen Demand (COD)

400

<50 mg/L

Ammonium-Nitrogen (NH4)

30

<2 mg/L

*Values presented here do not represent guarantees.

Standard Features

Operating conditions

Available Options

  • 40’ and 20’ high cube (HC) containers depending on capacity
  • Insulated container walls
  • Zero water leakage
  • Enhanced container structure
  • Seaworthy container
  • Pre-treatment using drum screen (1.5 mm perforation)
  • Aeration tank with fine bubble diffusers for biomass growth
  • Submerged HF membrane modules equipped with coarse bubble diffusers
  • Built-in membrane cleaning and air scoring system
  • Electrical supply: 460V/3Ph/60Hz
  • Operating temperature range: 68-86°F (20-30°C)
  • Design temperature: 68°F (20°C)
  • Anoxic zone to achieve denitrification (NO3 removal)
  • Additional pre and/or post-treatment processes to meet effluent quality requirements
  • Standby pumps for redundancy
  • Remote monitoring
  • Feed water pump
MODELS

 


Module #

Flow Rate


Approximate Population (50 gpd per Capita)

Membranes


Skid Material


# of Containers

gpd

m3/d

# of Skids

# of Modules

MBR-C-13.2K-06

13,211

50

265

2

3

316SS

 1 × 20′

MBR-C-26.4K-10

26,421

100

529

2

5

316SS

1 × 40′

MBR-C-39.6K-16

39,631

150

793

2

8

316SS

1 × 40′

MBR-C-50.2K-20

50,199

190

1004

2

10

316SS

1 × 40′

  • Municipal wastewater Treatment
  • Residential and commercial wastewater treatment (e.g., camps, hospitals, office complexes, golf courses, restaurants, and car washes)
  • Water reclamation (e.g., irrigation of gardens or agricultural fields)
  • Pre-treatment for Reverse Osmosis (RO) system
  • Industrial wastewater treatment