INDIA WATER WEEK
International Conference Delhi, 8th –12th of April 2013
ORAL COMMUNICATION
Re-use of wastewater in agricultural production schemes in Southern Spain INDIA WATER WEEK Delhi, 10th of April 2013
Water scarcity in the world
Water scarcity and agriculture
Water and agriculture: • Safe and economic wastewater treatment • Direct use of water and nutrients • Irrigation in agriculture (fertigation) • Minimal O&M costs
Automated system
• Based on the results of PURATREAT and WACOSYS
Water scarcity and agriculture
A comprenhensive assessment of Water Management in agriculture: Que s tio n: Is there enough land, water, and human capacity to produce food for a growing population over the next 50 years—or will we “run out” of water? The C o m p re he ns iv e As s e s s m e nt’s ans w e r: It is possible to produce the food—but it is probable that today’s food production and environmental trends, if continued, will lead to crises in many parts of the world. Only if we act to improve water use in agriculture will we meet the acute freshwater challenges facing humankind over the coming 50 years.
Water scarcity and agriculture
A comprenhensive assessment of Water Management in agriculture: Que s tio n: Which efforts are necessary to provide fresh water ? The C o m p re he ns iv e As s e s s m e nt’s ans w e r: The efforts depend on the technology used: 1.Seawater desalination: energy demand 7 – 12 kWh/m³, generation of brines with high salt concentration (waste disposal problem!), usually large centralised units, 2.Decentralised MBR technology: energy demand <1 … 3 kWh/m³, generation of surplus sludge with high organic matter and nutrient content (fertiliser + soil conditioner!), tailor made systems.
TREAT&USE project overview – Concept
TREAT&USE system: • Safe and economic wastewater treatment • Direct use of water and nutrients • Irrigation in agriculture (fertigation) • Minimal O&M costs
Automated system
• Based on the results of PURATREAT and WACOSYS
TREAT&USE project overview â&#x20AC;&#x201C; Concept
TREAT&USE project overview – PURATREAT
PURATREAT project: • Development of low energy MBR prototypes ( -90%) • Focused on Southern Mediterranean countries (water stress) • Comparison of three leading membrane technologies
TREAT&USE project overview – PURATREAT
TREAT&USE project overview – WACOSYS
WACOSYS project: • Develop, test and optimize a wastewater irrigation system • Combined sensor-detector dosage system • Monitoring, control and distribution units • Dosing of the wastewater according to the crop demand • Short rotation plantations (Poplars)
TREAT&USE project overview â&#x20AC;&#x201C; WACOSYS (plantation Granada)
TREAT&USE project overview â&#x20AC;&#x201C; Modular approach
TREAT&USE project overview – Objectives
Overall objectives: • Provide a safe, technological solution for reusing wastewater in agricultural production • Taking advantage of the huge potential of wastewater resources in water scarce regions in the Mediterranean Basin for fertigation purposes • Development of an approach which allows 100% reuse of wastewater and a 70% recovery of nutrients • Uptake of PURATREAT and WACOSYS results and develop a precommercial treatment and reuse prototype for direct market application in agriculture
TREAT&USE project overview – Innovation from the past
TREAT&USE: • Upscale MBR and adapt it to requirements of municipal wastewater (tailor made effluent) • Irrigation on food crops
Tomatoes
• Pre-commercial prototype unit
Work package 8: Project management and coordination
TREAT&USE project overview â&#x20AC;&#x201C; Work Packages Work package 1: Assessment of the TREAT&USE system requirements
WP leader: TTZ
Work package 2: Design of the system modules for TREAT&USE
WP leader: HYDRO
Work package 3: Prototype construction and initial test phase
WP leader: BIOAZ
Work package 4: Test site preparation
WP leader: SMS
Work package 5: Implementation, on site performance, analysis and adaptation of the system
WP leader: HYDRO
Work package 6: Overall evaluation of the system
WP leader: TTZ
Work package 7: Exploitation and commercialization
WP leader: BIOAZ
The NaWaTech concept • Natural water systems and treatment technologies to cope with water shortages in urbanized areas in India. • Projects respond to the call ENV.2012.6.6-1: EU -India cooperation in water technology and management and to the corresponding call of the Department of Science & Technology in India. The planned activities support the objectives of the Strategic Forum for International Science and Technology Cooperation (SFIC). • Aims at maximizing the explotation of natural and compact technical systems and processes for the effective management of municipal water resources of water supply and sanitation services, and of the municipal water cycle as a whole in urbanized areas of India.
The NaWaTech concept
â&#x20AC;˘ The NaWaTech concept is based on the optimised use of different urban water flows by means of a multi-barrier approach. Taking into account the different nature and degree of pollution, each water flow is managed, treated and reused individually, supplementing traditional water sources to cope with shortages in Indian urban settlements.
The NaWaTech concept ď&#x192;&#x2DC; Blackwater and greywater (as separated streams or mixed) can be treated through the combination of an anaerobic process (producing energy and biogas) plus Constructed Wetlands (CW) or treated through aerobic technical water treatment systems (SBR or MBR). In both cases the effluent can be either discharged to the surface waters or reused in urban agriculture or landscaping. Stormwater can be collected and pre-treated in CW before it is filtered through the soil and stored in the aquifer. Rainwater can be collected on rooftops and parking lots and used in the households or fed into the aquifer. ď&#x192;&#x2DC; In addition, a cost-effective and viable post-treatment option can be developed based on different steps depending on the use to be given to the stream, and therefore water quality requirements. The different systems will be integrated into the urban scene providing additional socio-economic functions, including flood management, buffering of seasonal availability of water and recreational space for the urban dwellers. This holistic approach will minimize the urban water footprint and enhance the water security of the area, as the water cycle is closed at a local level. It also minimizes the pollution of water sources for downstream users.
NaWaTech Objetives The specific objectives of NaWaTech are: To assess the technical, financial and environmental potential of natural water treatment technologies to cope with water shortages in urbanised areas in India. To enhance the natural water treatment systems for the production of recycled water to supplement water sources considering extreme climatic conditions and highly varying pollutions loads. To disseminate, exploit, and ensure the take-up in practice and mainstreaming of NaWaTech activities and outputs by key stakeholders. To benefit Indian and European SMEs in the water sector, by supporting the development of a local market forinnovative water treatment technologies, and training the SMEs on the NaWaTech approach. To create an enabling environment in order to allow the take-up in practice and mainstreaming of the results. To establish foundations of a long-term cooperation between EU and India in water technologies.
NaWaTech consortium TTZ - TTZ Bremerhaven, RTD, Germany – EU Project Coordinator seecon - Seecon International GmbH, PYME, Switzerland BOKU - Universität Fuer Bodenkultur Wien, RTD, Austria UPC - Universitat Politéctnica de Catalunya, RTD, Spain BioAzul - BIOAZUL SL, PYME, Spain IRIDRA - IRIDRA SRL, PYME, Italy Kre_Ta - Kretschmer und Tauscher GbR, PYME, Germany ESF - Ecosan Services Foundation, association, India NEERI - National Envitonmental Engineering and Research Institute, RTD, India – Indian Project Coordinator 10. IWWA - Indian Water Works Association, association, India 11. SERI - Shrishti eco-research Institute, RTD, India 12. VEIPL - Viraj Envirozing India Pvt. Limited, PYME, India 13. MJP - Maharashtra Jeevan Pradhikara, local coorporation, India 14. PMC - Pune Minicipal Cooperation, local coorporation, India 1. 2. 3. 4. 5. 6. 7. 8. 9.
BIOAZUL : the company R&D&i intensive SME, experienced multidisciplinar team in R&D&i applied and industrial projects. Engineering and technological consultancy focused on environmental issues (water and energy), with two interconnected business areas: â&#x20AC;˘ Development and marketing of innovative products and technologies for wastewater treatment. â&#x20AC;˘ Technological consultancy, acting as catalist and promotor of R&D&i applied projects.
BIOAZUL SBR BIOAZUL SBR systems are compact, state-of-the art sewage treatment systems that use 100% natural processes to decontaminate and clean sewage water to recyclable standards. BIOAZUL SBR systems carry out complete sewage treatment in three stages: • Solid separation • Buffer chamber • SBR chamber
BIOAZUL SBR: advantages vs other systems
• Less space requirement
• Easily adaptable to existing systems
• High removal efficiency
• Easy maintenance and reparation
• Low sludge generation
• Low energy consumption
• Low visual impact
• ECO mode for seasonal periods
•High stability against load fluctuations • Remote monitoring and control
BR: 4 PE and 50 PE SBR systems in CENTA (Seville), Spain
GSM data transmitter / remote control unit
SBR: systems removal efficiency Evaluation test for urban wastewater treatment technologies carried out by Fundaci贸n centro de las nuevas tecnolog铆as del agua (CENTA)
BIOAZUL MBR BIOAZUL MBR systems are compact, state-of-the art sewage treatment systems that use membrane technology to decontaminate and clean sewage water to recyclable standards. BIOAZUL MBR systems carry out complete sewage treatment following the next steps: • Solids screening and separation • Biological oxidation • Filtration
MBR: application in winery “Holstein” (Kindenheim), Germany • Type of application: Industrial effluent from a winery (approx. 10 PE) • Footprint: 1.50 m² • Membrane type: Flat sheet Ultrafiltration • Filtration surface: 7 m² • cut-off: 0.04 µm • Flow: 900 liters/hour • Transmembrane pressure: 80 mbar • Energy consumption: 0.98 kWh/m³ Allowed for all kind of industries
MBR: Bioazulâ&#x20AC;&#x2122;s mobile fully automated MBR pilot plant for water treatment and reuse (250 PE treatment capacity)
MBR: application in campgropund Fornella (Garda Lake), Italy
MBR: application in campgropund Las Lomas (Granada), Spain
MBR: application in a 5 Star hotel/resort, Golden Sands, Malta
LODOred: The sustainable solution
LODOred: Description • Surplus sludge reducer
• Biomass purification efficiency enhancer • Biological process stabilizer • 100 % Biodegradable • No hazardous compounds • Thorough production quality control
LODOred: Fields of application • Biological wastewater treatment plants • Municipal wastewater treatment plants • Industrial wastewater treatment plants • Tailor made recipe for special applications • Analysis of technical and economical viability • More than 50 successful applications all over Europe
LODOred: effects • Reduction of surplus sludge up to 40% • Increased biological efficiency and plant resilience • Compact floc structure improving sedimentation properties and sludge dewatering •Reduction of polymer consumption fro sludge dewatering by 30 % • Ingredients of food industry grade - no chemical pollutants added to the sludge • Sludge can be applied as fertilizer in agriculture
ALEJANDRO CABALLERO acaballero@ bioazul.com Avda. Manuel Agustín Heredia 18, 1º 4 29001 Málaga, España
tel: +34 951 047 290 · fax: +34 951 256 735
www.bioazul.com