Presentation-Symwatech-WED-05.06.16-final

Jubail, 5 June 2016

THE WORLD ENVIRONMENT DAY SYMPOSIUM

ROYAL COMMISSION IN JUBAIL

SYMBIOTIC WASTEWATER TREATMENT & REUSE TECHNOLOGY:AN INNOVATIVE APPROACH FOR WATER AND ENERGY CONSERVATION

For Discussion Purposes OnlyPrivate and Confidential

Contents

2

Introduction: Water sector in KSA1

Main Advantages & Applications

3

4

Symbiotic Wastewater Treatment2

Examples/Case study

3

17

23

9

Slide No.

3

Introduction: Wastewater situation in KSA

• Total volume of generated WW (SWW+IWW) in KSA: 4.5-5 Million m³/d (*)

• Kingdom’s sewage collection total coverage: over 50%

• Sewage systems including WWTP are only available in large urban centers

• WW disposal is limited only to cesspits in small towns and rural areas

• At least 35% of the total WW produced is discharged in the untreated form

• Majority of WWTPs in KSA have secondary levels of treatment. Main technologies used are:

Activated sludge or trickling filters Extended aeration Aerated lagoons Carousel systems

• Tertiary treatment facilities do exist, mainly around larger cities(*) Produced water not included

4

Introduction-Wastewater reuse situation in KSA

• Currently 2.75 million m³/d of treated wastewater (TSE) is reused

• Majority of TSE is being provided for free on a non-commercial basis

• NWC’s TSE initiative is ongoing since 2012: promising results

• TSE is estimated that could rise to @ 5.75 million m³/d by 2035

Current and projected levels of treated wastewater reuse in Saudi Arabia. Source: KAUST/MOWE (2011)

5

Introduction-Wastewater treatment and reuse goals in KSA

MOWE Infrastructure Goalsfor cities with more than 5,000 inhabitants

• By 2025, cities will be nearly 100% served with water supply and sewage collection systems

• Nearly all sewage collection systems will be connected to WWTPs by 2025

• All reuse quality treated sewage effluent (RQTSE) will be beneficially reused

• By 2030 TSE usage in six major cities is expected to be around 4.0 million m³/day

Ninth Development Plan 2010-2014Wastewater targets

• Increase the proportion of treated wastewater to about 50% of consumption for municipal purposes

• Increase the rate of reuse of treated wastewater to about 50%

• Add 700,000 new wastewater connections and 12,000 kilometers of wastewater networks, bringing service coverage to 60%

6

Introduction-Wastewater treatment and reuse initiatives in KSA

“We will also promote the optimal use of our water resources by reducing consumption and utilizing treated and renewable water¨

National Water Strategy: “To develop and introduce new technological and institutional innovations”

Regulations and Initiatives to promote Wastewater Treatment and Reuse in KSA. Source: Marafiq, 2015

7

Introduction-Wastewater treatment and reuse potential in KSA

0

200

400

600

800

1000

1200

STP Capacity Treated Sewage TSE Reuse

Vo

lum

e [1

000

m3 /

day

]

Wastewater Treatment and Reuse Potential in KSA. Source: Ministry of Water and Electricity, 2010

8

Introduction-Water related key challenges in KSA

• Saudi Arabia is listed under “absolutely water scarcity category” country

• KSA lacks sufficient water and WWT capacity to meet future demand

• Domestic water demand is increasing at an annual growth rate of 6%: it is projected to increase by 3.8 million m³/day during the period 2010 – 2035

• Industrial water demand is growing 7.5%/y & will grow 50% in the next 15 years

• WW production will also increase accordingly: @ 7.5 million m³/day by 2035

9

SYMWATECH: Definition & Concept

• SYMWATECH© = SYMBIOTIC WASTEWATER TREATMENT TECHNOLOGY

• Innovative, simple and reliable technology to treat sanitary/industrial WW

• Combines WWT and IRR techniques to create urban green areas in same place

• SYMWATECH © is registered in 30 countries under different patent numbers

10

SYMWATECH: Description of the technology

• SYMWATECH© is an aerobic WWT process that consists essentially in a trickling filter or fixed bed biological reactor (BBR)

• Its successful performance is based on the following technical aspects:

1) Two differentiated areas: treatment (purification) area and cultivation area

2) The use of a rings’ filters as an essential pre-treatment system;

3) An underground drip irrigation system to distribute homogeneously the wastewater into the aerobic BBR;

4) The design of an interior structure linking purification and cultivation areas;

5) Horizontal/vertical device which allows deep natural oxygenation of BBR

11

SYMWATECH: Description of the technology

Drainage/ventilation

12

SYMWATECH: Vertical vs Horizontal configuration

13

SYMWATECH: Vertical vs Horizontal configuration

750 habitantes

Earthworks

Waterproofing with polyethylene sheet

Drip pipelines system

14

SYMWATECH: Construction process details

Pipelines network system

Gravel bed placement

Drip pipelines and cultivation sand placement

15

SYMWATECH: Construction process details

750 habitantes

WATER VALVES BOX

Detachable connections

Guide tubes

16

SYMWATECH: operation and maintenance details

Pumping station

Tertiary treatment plant in Quart-Benager (Valencia) : 780 m3/d

Camping Moratalla (Murcia): 750 people

WWTP at Cenajo hotel (Murcia): 60 m3/d (500 eq. inhabitants)

17

SYMWATECH: Examples of horizontal symbiotic plants

WWTP at the University of Murcia: 500 m3/d (5,000 eq. inhabitants)

18

SYMWATECH: Examples of vertical symbiotic plants

Wastewater can be pre-treated and treated even in the town center; any herbaceous crop or shrub can be grown, as desired.

WWTP with aviary and urban garden in Santomera city: 12 m3/d IWWTP in a food industry in Murcia: 15 m3/d

19

SYMWATECH - University of Murcia case study: 500 m3/d

Reduction of solids, oil & grease, up to optimal design parameters

Sludge removal and final disposal

Screening, sieving,

regulation tank,

pumping Consumption and

removal of organic

matter

Regulation

Symbiotic reactor

(Stage 1 to 4)

Tertiary treatment:

Consumption of

organic matter,

oxygen,

denitrification and

disinfection

Water tanks &

Pumping station

TSERings’ filters

Area = 395 m2

Area = 4,131 m2

20

SYMWATECH - University of Murcia case study: 500 m3/d

Reduction of solids, oil & grease, up to optimal design parameters

Sludge removal and final disposal

Screening, sieving,

regulation tank,

pumping Consumption and

removal of organic

matter

Regulation

Symbiotic reactor

(Stage 1 to 4)

Tertiary treatment:

Consumption of

organic matter,

oxygen,

denitrification and

disinfection

Water tanks &

Pumping station

TSERings’ filters

Area = 395 m2

Area = 4,131 m2

21

SYMWATECH - University of Murcia case study: results

Inlet effluent quality

Parameter Range Average

pH (7.13 - 8.28) 7.66

Dissolved oxygen (mg O2/L) (0.20 - 5.73) 2.49

Conductivity (mS/cm) (1.64 - 3.55) 2.25

TSS (mg/L) (265 - 976) 518

COD (mg O2/L) (571 – 2,320) 1,012

BOD 5 (mg O2/L) (300 -1,100) 536

NTK (mg N/L) (23 - 60) 42

N-NH4+ (mg N/L) (21 - 51) 35

Nitrates (mg N/L) 0 0

P Tot (mg P/L) (6 - 22) 11

P-PO43 - (mg P/L) (2 - 17) 5

22

SYMWATECH - University of Murcia case study: results

Final effluent quality, performance and values indicated in the EU Directive

Parameter Range Average Performance

(%)

Directive91/271/EEC

pH (7.47 - 8.30) 7.76

Dissolved oxygen (mg O2/L) (4.15 - 18.5) 9.25

Conductivity (mS/cm) (1.90 - 2.66) 2.34

TSS (mg/L) (5 - 19) 11 96 35

COD (mg O2/L) (21 - 51) 33 97 125

BOD 5 (mg O2/L) (2 - 5) 3 25

NTK (mg N/L) (0.3 - 3) 1 88

N-NH 4+ (mg N/L) (0.1 - 3) 1 87

Nitrates (mg N/L) (7.6 - 31.7) 15.9

P Tot (mg P/L) (2.7 - 5) 4 60

P-PO43 - (mg P/L) (1.7 - 4) 3

23

SYMWATECH: MAIN ADVANTAGES

1) Can treat any type of wastewater with high yields (up to 99.999%);

2) Design flexibility: scalable and adaptable to any specific requirement/condition;

3) No or little influence of the temperature in the process;

4) Significant reduction of civil works and electromechanical equipment;

5) Low energy requirements: from 0.24 to 0.8 kw.h/m3 Reduction of CO2 emissions

6) Low chemicals consumption;

7) Very low and easy O&M requirements: can be done by non-qualified personnel;

8) Long-lasting: natural ecosystems that can operate 24h/365d

9) Low sludge production and easy disposal as compost;

10) No negative impacts to the health & environment: very low noise, odour free;

11) No visual impact as the symbiotic treatment plants are integrated in the landscape;

12) Easy to build with local materials readily available in any location;

24

SYMWATECH: MAIN APLICATIONS

Any water consumer, from an individual user to big consumers (public or private) that need to treat their wastewaters generated, such as:

- Single family houses / group of villas or a housing development;- Compounds;- Real estate companies;- Construction companies;- Town councils;- NWC, MODON, ROYAL COMMISSION, MARAFIQ, SAUDI ARAMCO, SABIC, SEC,

MA’ADEN, SWCC;- Golf courses, football stadiums or any other sports field;- Leisure places: hotels and resorts, malls, shopping centers, public gardens, etc.;- Airports;- Petrol stations and/or any type of industry, especially food & beverage

For further information:

THANK YOUشكرا

Manuel HidalgoPhone: +966 (0) 597203761Email: [email protected]

RAMADAN MUBARAKرمضان مبارك