Package Sewage Treatment                              Plants

There is a Worldwide recognition that decentralized wastewater treatment is a better and more efficient alternative to a centralized wastewater treatment system when considered from the angle of investment and energy consumption. There are many areas within cities, towns, and villages that are impossible to cover through centralized treatment systems which take care of proper treatment and disposal of sewage.

In line with our innovative approach, we now bring to you Packaged Sewage Treatment Plants in Sri Lanka that are compact and can be used in a decentralized manner anywhere for wastewater treatment, delivering the best solution we have implemented so far. The technology used by us is an advanced version of MBBR.

Sintex Packaged Sewage Treatment Plants are based on anaerobic and aerobic processes and are designed to have dual functions for the efficient treatment of domestic wastewater from toilets, bathrooms, kitchens, and washing areas.

NBF SERIES  FOR MEDIUM AND LARGE APPLICATIONS

Sires NBF is designed for medium and large applications like High -rise Residental Apartments, Commercial Complexes, Super Mall, Hospitals universities, schools, Large Office buildings ,factories, Institution etc.

Features and Benefits

 

FEATURE

 

BENEFIT

100% Eco-Friendly

Sintex STPs keep the soil safe from contamination and improve its quality as it reduces BOD by between 90-95%

Leak Proof

FRP/Roto PSTP tank ensures no corrosion and leakage unlike an RCC or Metal Tank

Light Weight

FRP/ROTO PSTP is much lighter compared to metal which makes them easy to transport, unload and install

Zero Footprint

FRP/ROTO PSTP is installed 100% under the ground making the land available for other uses thus ensuring zero footprint

Rust Proof

The material used for making the PSTP is fiber-reinforced plastic and roto-molded plastic which will never get rusted

Durable

As these PSTPs are rust-proof and leakproof hence they have a lifespan exceeding 50 years

Easy to Install

As these PSTPs are compact and light in weight making them easy to install

Cost-Effective

Sintex STP operations and maintenance costs are much lower compared to conventional STP as they do not need specialized and skilled manpower

Energy-Efficient

Energy consumption of Sintex STPs is at least 50% less than conventional STPs

Easy to Maintain

Sintex STPs need sludge handling once in 12-18 months compared to conventional STPs which require the same every 10-15 days

   

    Operation Principle

       Solid Separation Zone (Anaerobic Zone)-The first stage transforms the influent solids into settled solids while allowing scum to float on the surface. It is a primary sedimentation zone in which settled sludge is stabilized by anaerobic digestion. The treatment efficiency of the chamber is in the range of 30% BOD removal.

     Aeration Zone (Aerobic Zone -The second stage is in the aerobic zone along with plastic media inside the tank which in turn increases the surface area and retains micro-organisms long enough to digest the organic substances. Clearwater overflows to the next treatment chamber. Air is provided through blowers and higher contact time with the Biofilm on the plastic media facilities for efficient digestion. BOD removal is around 60%.

   Final Sedimentation Zone-The final stage involves sedimentation where organic waste is settled in the sedimentation zone. The settled waste in the bottom is pumped back into the solid separation zone as a return sludge having active biomass (MLSS) to increase the efficiency of the system. The output from this zone is the effluent that meets the stipulated pollution control Standards.

     Optional -For more Stringent effluent parameters, we also offer a Tertiary Treatment Plant (TTP) addition to the system which does the job of filtration that further improves effluents

NBF SERIES  FOR MEDIUM AND LARGE APPLICATIONS

sewage treatment Sri Lanka

Sewage treatment

Applications and Uses

Residental and commercial complexes                                 Temples 

Public Gardens and National Parks                                        Government Office

Hotels and Resturents                                                                Labour Quarters

Resturents                                                                                      Townships

Industries                                                                                        Hostels 

Institutions                                                                                     Hospitals 

Range and Specifications

 

Specification

Model

No. of Users

 

NBF 10

NBF 15

NBF 20

NBF 25

NBF 30

NBF 35

NBF 40

NBF 45

NBF 50

NBF 60

NBF 70

NBF 80

NBF 90

NBF 100

NBF 120

NBF 150

Flow rate per day (KLD)

10

15

20

25

30

35

40

45

50

60

70

80

90

100

120

150

Residential (150 LPCD)

67

100

133

167

200

223

267

300

333

400

467

533

600

667

800

1000

Office (80 LPCD)

125

187

250

312

375

437

500

562

625

750

875

1000

1125

1250

1500

1875

Toilet (50 LPCD)

200

300

400

500

600

700

800

900

1000

1200

1400

1600

1800

2000

2400

3000

Educational Institutions (80 LPCD)

125

187

250

312

375

437

500

562

625

750

875

1000

1125

1250

1500

1875

*LPCD : Liters per capita per day

*KLD : Kilo Liters per day

Sewage Treatment Sri Lanka

 

 

SINTEX STBF SERIES-PACKAGED SEWAGE TREATMENT PLANT

 

 

The primary focus of Sintex TBF Series-Packaged Sewage Treatment Plant to protect the health of your family, the community and environment. This system is designed to hold, treat and use/ disposed domestic waste/ wastewater, while preventing drinking water contamination at the source; which makes good sense when it comes to public health, the economy and the environment. One of the most important reasons why your role in this is necessary is maintenance costs and property value. This is because failed septic systems are expensive to repair or replace and can also cause property values to decline. For these reasons, it’s quite important for you to take the right step toward wastewater treatment of your household. The STBF Series-Packaged Sewage Treatment Sri Lanka Plant series is manufactured in collaboration with M/S Aqua Nishihara Corporation, Japan – a world leader in wastewater treatment system.

 

HOW THE STBF SERIES-PACKAGED SEWAGE TREATMENT PLANT WORKS

 

Wastewater from toilet, sink, shower, washing machine and other drain flows through the household sewer drain pipe reaches into a septic tank. The septic tank provides a number of important functions through a complex interaction of physical and biological processes. The septic tank receives sewage from the house, separates solid waste from liquid waste, stores separated solid waste and passes the liquid waste out of the tank for final treatment and use/ disposal. The main function of the septic tank is to remove solid waste from liquid waste. The process relies on gravity and time to naturally separate the wastewater into three layers:

SCUM

Substances lighter than water (oil, grease, fats) float to the top, forming a layer on top of the water.

SLUDGE

Substances heavier than water (soil, unconsumed food particles) settle to the bottom of the tank and form a sludge layer.

EFFLUENT

This is the wastewater left between the scum and sludge layers. The effluent flows through the tank outlet to the soak - pit/ drain - field where natural treatment occurs.

 

STBF SERIES-PACKAGED SEWAGE TREATMENT PLANT FEATURES

 

         Compact System designed in a Single FRP/LLDPE shell divided into compartments which convert Sewage to re- usable water

         Based on Advanced MBBR Technology

         Reduces BOD (Biological Oxygen Demands) up to 95%

         No-Leakage in the Tank hence no soil pollution

         Completely concealed system, No-odor released directly to the environment

         Easy to Install, operate and Re-locate

   Since it is installed underground hence maximum utilization of ground Surface

sewage Treatment plant

 

ADVANTAGES OF SINTEX STBF SERIES-PACKAGED SEWAGE TREATMENT PLANT

Sintex STBF series-packaged sewage treatment plant comes with far more long-term benefits than any other tank material. Being an effective alternative, these tanks are made from a combination of polyethylene (LLDPE). This offers a robust solution and provides various benefits. Also, the total treatment rate for Sintex STBF series-packaged sewage treatment plant is approximately 95%, where the water can be used either for irrigation/ farming purpose or can be disposed of into the drainage line or soak pit.

 

SINTEX ADVANCED SEPTIC TANK

CEMENT SEPTIC TANKS

Rust/ corrosion proof, leak proof, not prone to cracking

Crack/leakage problem

100% eco-friendly

Risk for environment

Weight less than other materials (re-locatable)

Cannot be moved

 

Value for money

Expensive to maintain

Completely water & air-tight

Responsible for water & air contamination 

Easier to install and repair than other materials

Time taking in manufacturing & installation

Designed to add to resilience and strength

Weak strength

Excellent performance through massive reduction of BOD

Very low performance

Recycled water can be used

Water cannot be used

Protects from waterborne diseases

Spreads waterborne diseases

 

 

CAPACITY AND USES OF SINTEX STBF SERIES-PACKAGED SEWAGE TREATMENT PLANT

Sintex STBF series-packaged sewage treatment plant is manufactured in various sizes and shapes keeping in mind the usability aspect.

 

SINTEX STBF SERIES-PACKAGED SEWAGE TREATMENT PLANT

STBF series-packaged sewage treatment plant Capacity (Litres)

Residential/ Bungalows/ Tenements/ Villas/Farm House (150 LPCD*)

Office/ Small Factories/ Training Center (80 LPCD*)

Educational Institutions/ Schools (80 LPCD*)

Only Toilet Water (50 LPCD*)

Canteen (20 LPCD*)

800

4

6

6

10

20

1200

6

8

8

16

30

1600

10

13

13

22

50

1800

12

15

15

24

60

2000

14

18

18

28

70

3000

16

23

23

46

80

4000

20

26

26

52

100

5000

24

33

33

66

120

6000

32

40

40

80

160

 

*LPCD – Litres Per Capita Per Day

 

CAPACITY 1.2 to 6.0 KLD ONWARDS

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