Operating Manual - KLARO GmbH

More documents

Recommendations

Info

Operating Manual for SBR small wastewater treatment systemssludge storage room is large enough for at least twelve months. Low-load operation extends this periodof time accordingly. Timely sludge disposal is necessary in order to prevent the solids from entering thebiological stage in the event of increasing sludge production. Sludge regulation and disposal areimportant requirements for a good purification performance and long life of the small wastewatertreatment plant.The sludge disposal regulations are laid down by the local authorities. Either regular or demand-orientedsludge removal is required:- Regular sludge removal takes places on specific dates and is set by the local authorities to onceand/or twice a year depending on the type of the plant, size of the chambers and connectedinhabitants.- Demand-oriented sludge removal is flexible and takes place at shorter or longer time intervals. Inthis case, skilled maintenance personnel check the sludge level (sludge level measurement) andinform the competent disposal company about the date of the required sludge disposal. With a fillingof the sludge storage of 70 % at the latest, the sludge must be disposed of. In individual cases, theskilled maintenance personnel inform the operator who then arranges himself/herself a date for thesludge disposal.If the maintenance and the sludge removal coincide, the sludge may only be removed after themaintenance has been completed. The sludge removal must be recorded in the operating log. In thisrespect, please also read the instructions provided by your specialist company.For the sludge removal, the following aspects must be observed:In most cases, only the primary settlement chamber of the small wastewater treatment plant must beemptied. With an incorrect sludge regulation of the plant, the suction of the lower section of the tertiarytreatment chamber or the suction of the floating sludge from the surface may also be necessary.• First, the floating sludge is sucked from the surface; then, the suction tube is placed on thebottom of the pit,• A residual amount of water of approx. 10 cm should be left on the bottom of the primarysettlement chamber,• After the drainage has been completed, the primary settlement chamber must be refilledwith fresh water!Complete drainage of the small wastewater treatment plant only makes sense if an operationalbreakdown occurs for which the cause cannot be determined or if repair work must be performed belowthe water level inside the container. Whether such complete drainage is necessary is best decided bythe skilled maintenance personnel.It is essential that you, as operator of a small wastewater treatment plant, ensure that the correctchamber of the plant is pumped. Excessive pumping of sludge can interfere with the operation of asmall wastewater treatment plant and causes unnecessary costs!30KLARO GmbH
Operating Manual for SBR small wastewater treatment systems7.2. Maintenance and servicing by skilled maintenance personnelThe maintenance must be carried out by a specialised company (skilled personnel) 1 . For this, the owner ofthe plant must conclude a maintenance contract with a qualified specialist.Note! During retrofitting work or maintenance work on the electrical components of the plant, thecontrol cabinet must be disconnected from the power supply by means of a main switch ormaintenance switch of the plant. It must be ensured that the switch is protected against beingswitched on by means of a lock.The following work must be performed as part of the maintenance:- Inspection of the operating instructions including assessing that the plant works properly(target/actual performance comparison),- Checking the air filter of the aerator and the supply and exhaust air openings of thecontrol cabinet,- Maintenance of the aerator according to manufacturer’s instructions (see annexes!).- Function control of the operation-critical mechanical, electro-technical and other componentsof the plant such as the aerator, lift, control unit, valves, alarm unit and the battery of the poweroutage detection device,- Checking the sludge height in the sludge storage; if required, the sludge removal must beprovided for by the operator (for instructions, see section 0),- Performing general cleaning work, e.g. removal of deposits,- Checking the state of repair of the plant,- Checking sufficient ventilation and exhaustion,- Examinations in the aeration tank:• Even ventilation picture (bubble picture),• Oxygen concentration (O 2 /l > 2 mg); if required, adjustment of the operating times of thecompressor,• Sludge volume fraction (< 400 ml/l). If the sludge volume is below 100 ml/l or above 400 ml/l, the duration of the sludgeextraction must be changed in consultation with KLARO GmbH.- Samples from the outlet and analysis of the following values:For each maintenance:- Temperature of the wastewater,- Settleable solids,- pH value,- Odour,- Colour,- Visibility depth,- COD value,- NH4-N (when required),- N inorg (when required),P (when required).1 Specialised companies are operator-independent companies whose employees (skilled personnel)have, due to their professional training and participation in relevant qualification measures, thequalification required for the operation and maintenance of small wastewater treatment plants.KLARO GmbH 31
Page 1 and 2: Operating Manualfor SBR small waste
Page 3 and 4: Operating Manual for SBR small wast
Page 9: Operating Manual for SBR small wast
Page 42 and 43: 10. Technical dataOperating Manual
Page 60 and 61: L1L2L1 L2 L3L3Operating Manual for
Page 62 and 63: HOperating Manual for SBR small was
Page 72: KLARO GmbHSpitzwegstraße 6395447 B

Operating Manual - KLARO GmbH

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?