WASTEWATER TREATMENT DISSOLVED AIR FLOTATION PLANTS. Dissolved air flotation plants

Transcription

1 WASTEWATER

2 Dissolved air flotation plants DISSOLVED AIR FLOTATION PLANTS IDROFLO dissolved air flotation plants are designed to treat industrial waste water, water clarification, primary waters with silt or suspension, oil separation. Dissolved air flotation (DAF) is a water treatment process that clarifies waste waters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or waste water under pressure and then releasing the air at atmospheric pressure in a flotation tank or basin. The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device With DAF technology (dissolved air flotation), we obtain performance not achievable with traditional physicalchemical systems: necessary volumes reduced thanks to air forced separation system; optimal separation of small size suspended solids; high rate sludge thickening. The float tank is made entirely of stainless steel (AISI 30), the clarified flow is collected from the bottom of the tank, while the sludge is removed from the surface of the water and sent to the next treatment. The ability to adjust the height of free surface water overflow, allows you to adjust the degree of thickening of the sludge removed. The device has a flash mixer for the conditioning of the waste water in line and 3 metering pumps for the dosing of reagents. The management is completely automated and is carried out by a Siemens electronic programmer. Metering pumps are not included in the supply (available separately). MUD The smallest models (IDROFL ) may be accompanied by a system of bags for the sludge. In the larger models or at least where there is a high sludge production it is necessary to provide a suitable system in support of dehydration/drying (belt presses, filter press or other). HIGH CONCENTRATION OF SEPARATED MUD OPTIMUM EFFICIENCY EVEN WITH A HIGHER OF LOWER FLOW THAN THAT PLANNED FOR PERFECT CLARIFICATION OF THE WASTEWATER QUICK AND EASY INSTALLATION AND STARTUP LOW CONSUMPTION OF CHEMICALS DIMENSIONS FEED REAGENTS MIXER MUD TO DRYER WATER + MUD FLOAT TANK AIR CLARIFICATION REDUCED SIZE COMPARED TO OTHER CHEMICAL PHYSICAL SYSTEMS STAINLESS STEEL CONSTRUCTION PROCESS AUTOMATION CONTROLLED BY PLC Model IDROFLO80 IDROFLO110 IDROFLO130 IDROFLO IDROFLO IDROFLO230 IDROFLO250 Flow rate Dimensions (mm) Electric power Weight m 3 /h L W H Kw Kg 0,5 2,0 3,0 3, IDROFLOSDF S.S. frame for drainage bags ,0 3,0,0 11,0 Optional Note 1. The table lists the average flow rates. Choosing the most appropriate model should be performed case by case by our technical department based on data from the customer. 2. We recommend the use of an automatic preparation of polyelectrolyte in the larger flotation plants

3 CHEMICAL PHYSICAL PLANTS CF 500 Chemical/physical plants FEATURES It is manufactured with: n. 1 reaction basin; n. 1 settling tank; n. 1 collection tank; n.1 mud dehydration compartment n. 3 dosing pumps; n. 1 slow mixer; n. 1 pump for treated water recovery; n. 1 minimum and maximum floater; n. 1 drying system with drainage bag; n. 1 electric panel. supply 230 V50 Hz singlephase. MUD DEHYDRATION COMPARTMENT OPTIONALS: Quartz sand filter: model FVM 35 or FVA 35 FVA Activated carbon filter: model KVM 75 or KVA 35 The CF 500 is a Phys./Chem. system designed to treat waste water of industries with small or medium potential such as: car washes, service stations, repair shops, laundries, etc. The main feature of the system is the onepiece construction that allows easy and quick installation, while the side doors allow easy access for periodic maintenance and inspections. TOP VIEW TREATED WATER STORAGE TANK TECHNICAL DATA Model Flow (l/h) Flow (l/giorno) Electric power I/O connections CF ,60 2 Electric power 230V 50Hz DIMENSIONS Model Dimensions (mm) L W H Weight (kg) CF 500 0x0x0 690 DEPURATION SYSTEM The water to be treated flows into the reaction basin, where chemicals are dosed. The mixture obtained, by means of a slow agitator, ensures intimate contact within the mass and the rapid formation of sludge flakes. The liquid mixture overflows into a settling tank, where the separation of flakes in suspension takes place. These flakes are collected by the conical bottom of the tank in the form of semithickened sludge, which is periodically sent to the dehydration stage by means of drainage bags. The clarified water flows into the final collection tank and is relaunched onto the next stage of treatment, using a pump controlled by a float. SETTLING TANK REACTION BASIN Waste water feed Mud drainage Drainage towards waste water storage tank Reaction Mixing SETTLING TANK mud separation clarification Reagent dosing ph corrector primary flocculent secondary flocculent Collection of clarified water Treated water recovery Note: It s a good idea to provide an equalization tank upstream in order to normalize the flow parameters over 2 hours. Moreover, depending on the origin of the discharge, we recommend the installation of an oil trap. CF 500 SDF (TNT Drainage bag)

4 BIOLOGICAL SEWAGE PLANTS Biological sewage plants TOP VIEW TOP VIEW WITHOUT WALKWAY GRATE The biological activated sludge reactors BIOSERVICE are designed for the treatment of urban wastewater coming from hotels, houses, offices, restaurants, residential areas etc.. They are built in two versions, for underground installations or for installation above ground with a ladder to access the grid and pedestrian guardrails. This equipment is provided with a protective railing. BIOSERVICE plants have a single stage unit of oxidation and sedimentation of sludge in order to significantly reduce installation time and simplify the management of the purification process. The provision includes air diffusers and air blower (the latter delivered separately). The structure is an horizontal cylinder, made of carbon steel coated internally and externally with nontoxic anticorrosive paint. A removable walkway allows visual verification of the quality of the flow, it also allows you to easily perform the sampling and analysis and ensures accessibility for maintenance operations on the structure. The air distribution pipes are made of galvanized iron and are easily removable for inspection or replacement of the air distributor. Standard distributors supplied with the plant are elastomeric disc type. For the recycling of thickened sludge the plant has an airlift system located within the sedimentation basin. The same system is used for the operation of clearing excess sludge. The supply does not include the electrical panel. supply 380 V threephase (blower). CIVIL WORKS RELATED. The system needs a continuous flow of waste water for 2 hours a day to function optimally. For this purpose, you must place an equalization basin upstream of the machine provided in order to fairly distribute hydraulic loads throughout the day. It is advisable to also include a section of screening for coarse materials in general and a trap for any oil and grease from kitchens. SIDE VIEW TECHNICAL DATA MODEL EQUIVALENT INHABITANTS DAILY FLOW ORGANIC LOAD ELECTRIC POWER IN CONNECTIONS OUT CONNECTIONS LENGTH HEIGHT WIDTH WEIGHT AT DISPATCH Unit of measure n m 3 kg BOD/g kw DN DN mm mm mm kg BIO 1 BIO 28 BIO 2 BIO 70 BIO 95 BIO 10 BIO 180 BIO 220 BIO 260 BIO ,8 0, ,6 1, , 2, , ,70 DIMENSIONS AND WEIGHT , , , , , The BIOSERVICE system, when properly installed and maintained, can reduce 90 to 95% of BOD coming from urban waste water characterized by the following benchmarks: Daily water per capita: 250 l; Flow coefficiency: 0.80; BOD5 per capita: 60 g/day; Information 1. WASTE INPUT 2. OUTPUT TREATED WASTE 3. SETTLER. AIR DIFFUSER Codice BIO 1 BIO 28 BIO 2 BIO 70 BIO PIPES FOR AIR DIFFUSERS 6. OXIDATION BASIN 7. WALKWAY GRATE Codice BIO 10 BIO 180 BIO 220 BIO 260 BIO

5 Side channel blowers SIDE CHANNEL BLOWERS BLOWERS G The Elmo Rietschle side channel blowers are the result of the merger between the technology of Elmo Rietschle and the American Gardner Denver. The constructive features guarantee a high yield and reliability combined with low noise thanks to the built in silencers. Elmo Rietschle Blowers are used for all the needs of air suction and compression and find particular use in the field of water treatment plants for the oxygenation of biological oxidation of drinking water and air injection systems in Spas. G THREEPHASE SINGLE STAGE 2BH16907AH26 2BH7AH07 2BH7AH17 2BH7AH27 2BH19007AH07 2BH19007AH17 2BH19007AH37 2BH19307AH07 2BH19307AH17 2BH19307AH37 2BH1007AH06 2BH1007AH16 2BH1007AH26 2BH1907AH16 2BH07AH06 2BH07AH16 2BH07AH26 2BH07AH36 2BH15907AH26 2BH16007AH06 2BH16007AH16 A210 A270 A272 A27 A330 A332 A33 A350 A352 A35 A160 A162 A16 A A190 A192 A19 A196 A180 A220 A222 8,5 12,5 18,5 8,5 12,5 18,5 0,7 0,85 1,3 0,6 0,85 1,3 1,6 1,6 G THREEPHASE DOUBLE STAGE PARALLEL 2BH13107HH26 2BH1107HH36 2BH15107HH57 2BH16107HH16 2BH16107HH26 2BH16107HH7 2BH16107HH57 2BH18107HH17 2BH18107HH27 2BH18107HH37 2BH18107HH7 2BH19107HH17 2BH19107HH27 2BH19107HH37 A10 A170 A202 A230 A232 A236 A238 A280 A282 A28 A286 A30 A32 A3 0,7 1, ,5 16,5 20 G MONOPHASE 2BH13007AV15 2BH1007AV25 2BH13007AH16 2BH72AH167 2BH7AH167 2BH1007AH26 2BH75AH168 2BH1107HH6 2BH75AH268 2BH15107HH6 2BH16007AH26 2BH16107HH37 * Models usually in stock A132s A16s A132 B10 B A16 B230 A172 B232 A A22 A23 0,37 0,0 1, ,00 3,00,30 supply 220V/50Hz 220V/50Hz 1 1/2 1 1/2 1 1/2 G THREEPHASE DOUBLE STAGE 2BH1607GH37 2BH1607GH7 2BH1607GH57 2BH1807JH27 2BH1807JH37 2BH1937GH27 2BH1937GH37 2BH1937GH7 A260 A262 A26 A320 A322 A380 A382 A DN 130 DN 130 DN 130 2BH17AA01 2BH13007AV1 2BH1007AA11 2BH1007AV2 2BH1907AA11 2BH1107HA31 2BH1107HV 2BH1107HV5 2BH07AA11 2BH07AV3 2BH07AV35 2BH15907AA21 A120s A132s A162s A16s As A170s A172s A172s A192s A196s A196s A180s 0,25 0,37 0,8 0,5 1,

6 Side channel blowers BLOWERS G00 THREADED FLANGES (order 2 pieces per blower) 2BX1037 2BX1038 2BX100 Ref. blower code Gardner 2BH11 /2BH13 /2BH7 2BH12 /2BH10 /2BH13 /2BH BH11 2BH15 /2BH16 2BH190.../2BH191 /2BH193 /2BH BH193.. FLANGE AS FLANGE AS FLANGE AS FLANGE DN55 2 GAS FLANGE GAS FLANGE DN GAS THREADED FLANGES SUCTION FILTER WITH PAPER FILTER CARTDRIGE (order depending on blower connections and operative flow rate) G00 THREEPHASE SINGLE STAGE 2BH73AH167 2BH73AH267 2BH76AH168 2BH76AH368 B170 B172 B260 B262 0,8 3,3 2BX2 2BX2101 2BX2102 2BX210 2BX2109 2BX2065 Ref. blower code Gardner Denver 2BH11 /2BH13 /2BH7 2BH12.../2BH1 2BH15 /2BH16 2BH18 2BH190 /2BH191 Flow Nm 3 /h (*) Suction filter M Suction filter 1 1/2 M Suction filter 2 M Suction filter 2 1/2 M Suction filter 3 M Suction filter M PAPER FILTER CARTDRIGES (*) with mm H2O pressure loss SUCTION FILTER WITH PAPER FILTER CARTDRIGE G00 THREEPHASE DOUBLE STAGE 2BH7AH267 2BH7AH567 2BH73AH567 2BH7AH267 2BH7AH567 2BH75AH268 2BH75AH778 2BH76AH368 2BH76AH578 G00 THREEPHASE THREE STAGES 2BH76300AH678 B B152 B182 B210 B212 B20 B2 B270 B272 B282 0,81 3,3 3,3 5,7 2BXF BXF BXF BXF BXF BXF90708 Ref. blower code 2BX2 da 2BX2101 da 1 1/2 2BX2102 da 2 2BX210 da 2 1/2 2BX2109 da 3 2BX2065 da (out Ø in Ø x h) Cartdrige 98x60x72mm Cartdrige 98x60x103mm Cartdrige 126x65x123mm Cartdrige 152x88xmm Cartdrige 201x16x156mm Cartdrige 25x195x192mm GALVANIZED FITTINGS GALVANIZED FITTINGS RZ0207 RZ0208 RZ0209 RZ0210 RZ0211 RZ00 RZ050 RZ063 RZ075 RZ090 PAPER FILTER CARTDRIGES (out Ø in Ø x h) LONG RADIUS ELBOW FF LONG RADIUS ELBOW 1 1/2 FF LONG RADIUS ELBOW 2 FF LONG RADIUS ELBOW 2 1/2 FF LONG RADIUS ELBOW 3 FF STRAIGHT THREAD FITTING xmm STRAIGHT THREAD FITTING 1 1/2xmm STRAIGHT THREAD FITTING 2 xmm STRAIGHT THREAD FITTING 2 1/2xmm STRAIGHT THREAD FITTING 3 xmm

7 DISK DECK DISTRIBUTOR FINE BUBBLE DECK DISTRIBUTOR. Selfcleaning disc deck distributor suitable for biological systems. Aquaflex deck distributor are state of art in microbubbles diffusion for biological plants and in applications where is necessary a proper oxygenation of water. Aquaflex deck distributors are built in order to obtain great efficiency, flow rate and durability. Membranes are made of EPDM and silicone, the body is made of PP. TECHNICAL DATA Air flow rate Average oxygenation in clean water and aeration from bottom Opening membrane pressure Weight Body material Membrane material 2 10 Nm 3 /h 22,9 g O 2 /Nm 3 for every meter 20 mmh 2 O with 1 Nm 3 /h 900g PP EPDM FME260 Height (mm) 61 Outer diameter (mm) 270 Effective diameter (mm) 230 Flow rate (m 3 /h) 2 10 Perforated area (m 2 ) 0,039 Connection 1 M FME