Natural wastewater treatment system
Compliant with discharge limits Table 3 Annex 5 Legislative Decree 152/06
Introduction
Phytopurification refers to those treatment systems based on the ability of plant organisms to absorb various organic compounds dissolved in water, concentrate them, and convert them into living organic matter (leaves, flowers).
In a Phytopurification system, polluted water first comes into contact with bacteria present within the basin, which break down the polluting organic matter into simpler inorganic molecules: nitrates, phosphates, carbon dioxide. These compounds are then absorbed by the roots.
At the end of the process, the water exiting a Phytopurification plant is free of pollutants and can be reintroduced into the environment or recovered and reused.
Phytopurification is a low-energy consumption system that is simultaneously effective against pollution and safe for the environment.
From the 1970s to today, Phytopurification plants have become increasingly numerous for the treatment of civil and industrial wastewater.
The main Phytopurification systems are:
Vertical Phytopurification with Recirculation;
Horizontal Phytopurification.
Features and operating principle
Phytopurification is a natural process for wastewater treatment that utilizes the self-purification principle typical of aquatic environments. In these biotopes, pollutants are naturally removed through physical, chemical, and biological processes, among which filtration, adsorption, assimilation by plant organisms, bacterial degradation, and antibiosis are most effective.
Phytopurification treatments are secondary biological treatments that require an upstream primary sedimentation treatment like an Imhoff Tank or Bicameral/Tricameral Septic Tank, Grease Trap/Soap Separator. However, they can also be used as a final polishing stage downstream of an activated sludge treatment plant.
Phytopurification systems are used to treat point and diffuse pollution sources, including stormwater runoff, domestic wastewater, and agricultural and livestock effluents.
Phytopurification systems are also used to treat landfill leachate and industrial effluents (paper mills, textile industries, food industries, and wineries).
Vertical Flow systems consist of basins waterproofed with plastic liners, dimensioned for a specific area of approximately 3 ÷ 4 m²/P.E., filled with gravel and/or sands of appropriate particle size, in which the following types of plants are planted: Abelia Rupestris, Cistus, Cotoneaster Franchetii/Salicifolia, Eleagnus Ebbingei, Evonimus, Gynerium, Hebe, Hypericum, Lavandola Officinalis, Mahonia Aquilfolium, Nandina Domestica, Nerium Oleander, Rosmarinum Officinalis, Teucrium Fruticans.
Vertical Phytopurification systems have the advantage of being able to be installed even on level surfaces as they are equipped with a recirculation electric pump. Vertical Phytopurification systems with a recirculation system allow for smaller surface areas per Population Equivalent.
Supply specifications
Supply and installation of a Vertical Phytopurification System for the treatment of wastewater from pre-treatments (Grease Trap/Soap Separator - Imhoff Tank) code FITO_VERT_ __, for ___ P.E., water provision ___ lt/PE/day, daily hydraulic flow rate Qg= ____ m³/day, basin dimensions: ____x____xh___ m (basin bottom dimensions), manufactured by EDIL IMPIANTI 2 S.r.l. with UNI EN ISO 9001 and ISO 450011 management system.
The Vertical Phytopurification System is supplied complete with:
- Recirculation/Loading Tank dim.___x___xh___+cover h__cm, weight: ql.____ complete with DN110 E/U fittings;
- Telescopic recirculation and flow regulation system in AISI304 stainless steel;
- Lifting kit with n.1/2 Electric pump/s of ____ Kw 400V;
- Electrical control and management panel with PLC logic and Touchscreen display;
- High-density reinforced polyethylene waterproofing geomembrane;
- Geotextile (non-woven fabric 150 gr/sqm);
- Corrugated draining pipe diam.110 mm;
- Treated effluent drainage manifolds in PVC diam.110 mm, including aeration chimneys;
- Effluent distribution pipes to be treated in HDPE diam. 40 mm. micro-perforated 3 mm. complete with corrugated mesh diam. 110 mm. micro-slotted, flow regulation valves for PEAD lines with compression fittings, pedestrian inspection manholes on single line, end caps for line cleaning and future inspections;
- Waterproofing geomembrane sealing flanges 110 mm;
- Consumables.
The supply does not include:
- Excavation according to Edil Impianti 2 Srl specifications;
- Supply and two-phase installation of screened and washed round/crushed gravel 4/8 mm to be laid as basin filling with suitable means;
- Supply and planting of plant essences/plants according to Edil Impianti 2 Srl specifications (approx. n.3 per sqm).
The system guarantees compliance with the limits of table 3, annex 5, Legislative Decree 152/06 for discharge into surface water.
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Configure the Supply Specification with the related accessories.
Legislation
Legislative Decree 11 May 1999, no. 152, concerning: "Provisions on the protection of waters from pollution and transposition of Directive 91/271/EEC concerning urban wastewater treatment and Directive 91/676/EEC concerning the protection of waters against pollution caused by nitrates from agricultural sources", following the corrective and supplementary provisions of Legislative Decree 18 August 2000, no. 258. Ordinary Supplement to the Official Gazette, no. 246 of 20 October 2000. Emilia Romagna Regional Council: Directive no. 1053/2003 concerning guidelines for the application of Legislative Decree 11 May 1999, no. 152 as amended by Legislative Decree 18 August 2000, no. 258 concerning provisions on water protection from pollution. Legislative Decree 152/06 and Emilia Romagna Regional Council Resolution 1053/2003 Discharge of domestic wastewater not conveyed to public sewers, discharge into surface water.
Applications
Phytopurification systems are used to treat point and diffuse pollution sources, including stormwater runoff, domestic wastewater, and agricultural and livestock effluents.
Phytopurification systems are also used to treat landfill leachate, industrial effluents (paper mills, textile industries, food industries, and wineries), and wastewater from kennels.
Fields of Application
Phytopurification systems for the treatment of wastewater from: Residential buildings, schools, isolated houses, hamlets, restaurants, hotels, residences, campsites, farmhouses, bathing establishments, dairies, cured meat factories, sports centers, agricultural activities, wineries, livestock farms, olive mills, car washes, finishing processes with zeolite, lagooning, riding stables, racetracks, phytopurification for kennels, renaturalization. Phytopurification systems as a final finishing stage.
Vertical Phytopurification with Recirculation Dimensions
Data Sheet Download
Select Article Code to access the Data Sheet for the product.
| Article Code |
PE | Water Supply (Lt/AE/g) |
Hydraulic Flow Rate daily Qg (mc/day) |
Surface (sq.m. 3.5xAE) |
Loading/Recirculation Tank | Vertical Phytoremediation Basin | |
| External Dimensions (cm) | Tank+cover weight (quintals) | Indicative dimensions (m) | |||||
| FITO_VERT_05 | 5 | 200 | 1,0 | 17,5 | 125x130xh200+cop.h20 | 36,1 | 3,0x6,0xh1,0 |
| FITO_VERT_10 | 10 | 200 | 2,0 | 35,0 | 125x130xh200+cop.h20 | 36,1 | 4,0x9,0xh1,0 |
| FITO_VERT_15 | 15 | 200 | 3,0 | 52,5 | 125x130xh200+cop.h20 | 36,1 | 5,0x10,5xh1,0 |
| FITO_VERT_20 | 20 | 200 | 4,0 | 70,0 | 180x180xh200+cop.h20 | 63,7 | 5,5x13,0xh1,0 |
| FITO_VERT_25 | 25 | 200 | 5,0 | 87,5 | 180x180xh200+cop.h20 | 63,7 | 6,0x15,0xh1,0 |
| FITO_VERT_35 | 35 | 200 | 7,0 | 122,5 | 180x180xh200+cop.h20 | 63,7 | 7,0x17,5xh1,0 |
| FITO_VERT_50 | 50 | 200 | 10,0 | 175,0 | 180x220xh200+cop.h20 | 74,0 | 8,5x21,0xh1,0 |
| FITO_VERT_80 | 80 | 200 | 16,0 | 280,0 | 180x220xh200+cop.h20 | 74,0 | 11,0x25,5xh1,0 |
| FITO_VERT_100 | 100 | 200 | 20,0 | 350,0 | 180x220xh200+cop.h20 | 74,0 | 12,0x29,5xh1,0 |
The data reported is purely indicative