污水操作手册(E).doc

此文档收集于网络，如有侵权，请联系网站删除Degussa Specialty Chemicals (Shanghai) Co., Ltd Industrial Wastewater Treatment System Operation ManualPACT Environmental Technology Co., Ltd.ContentsChapter One General PrincipleChapter Two General Requirements2.1 Operation Management2.2 Safe Operation2.3 Repair and MaintenanceChapter Three Technical Design and Process Flow3.1 Technical Design3.1.1 Waste Quantity3.1.2 Water Quality3.1.3 Standards of Discharged Water Quality3.2 Process Flow3.2.1 Waste Disposal Process Flow Design3.2.2 Waste Disposal Process Flow SpecificationChapter Four Disposal Structure, Equipment Function and Design ParametersChapter Five Flow Distribution and Balancing during Waste Disposal Equipments Daily Operation5.1 Waste Disposal Capacity5.2 Average Flow of Every Main Waste Lifting Pump Chapter Six Main Disposal Structure and Equipment Debug and Overall Linked Operation（By Clear Water）6.1 Purpose6.2 Confirmation and Preparation Before Trial Operation6.3 Electromechanical Equipment Unit Debug6.3.1 Main Task6.3.2 Electromechanical Equipment Connection Pipe Fittings Cleaning and Equipment Performance Parameter Confirmation6.3.2.1 Air blower and Transfer Piping 6.3.2.2 Aeration Tank Air Diffuser6.3.2.3 Waste Lifting Pump and Transfer Piping6.3.3 Setting of Every Equipments Discharge Capacity6.4 Overall Linked Operation：Chapter Seven Biochemical Disposal Structure Debugging Operation7.1 Transfer of Aerobic Activated Sludge7.2 Culture and Acclimatization of Activated Sludge7.3 Special Attentions and Test Items during Transfer, Culture and Acclimatization of Activated Sludge Chapter Eight Sand Filter Operation8.1 Filling of Sand Filter8.2 Backwash of Sand Filter8.3 Operation of Sand FilterChapter Nine Operation, Round-Inspection and Maintenance Management of Every Disposal Structure and Equipment System9.1 Target9.2 Determining Daily Round-Inspection Period during Waste Disposal9.3 Daily Operation of Disposal Structure and Equipment 9.3.1 Operation of Every Water Tank9.3.2 Water Pump9.3.3 Air blower9.3.4 Dosing Equipment9.3.5 Biochemical Disposal Structure9.3.6 Sludge DisposalChapter TenWater (Sludge) Sampling, Testing and Analyzing10.1 Water Sampling and Preserving10.1.1 Water Sampling10.1.2 Water Preserving10.2 Pollution Property Index of Daily Waste10.3 Water Quality Analyzing10.3.1 General Water Quality Test Item and Method10.3.2 Main Waste Quality Analysis Method10.4 Water Quality Test Management10.5 Water Quality Test Safe Operation and Maintenance Chapter ElevenElectric OperationAppendixAppendix 1Waste Disposal System PID ChartChapter One General Principle1.1 In order to strengthen management on waste disposal equipment, technique and water quality, guarantee normal operation of waste disposal structure and electromechanical equipment and ensure discharged water after disposal up to regulated water quality standards for environment protection, hereto draw up this manual;1.2 In addition to meeting this regulation, operation, maintenance and other safe operation of waste disposal equipment should also comply with regulations in current national criteria and standards. Chapter Two General Requirements2.1 Operation Management2.1.1 Personnel in charge of operation management should be familiar with disposal technique, structure and equipment function, operation requirements for every equipment and relevant technology specifications of this waste disposal system;2.1.2 Periodically round-inspect the operation of structure, electromechanical equipment, instrument and device;2.1.3 Make operation records and water quality analysis records with accurate data on time;2.1.4 Keep structures like tank and container and equipment water surface free of any floater and tank wall and discharge weir notch clean and intact;2.1.5 Keep every mechanical equipment and pipe fittings clean, no oil, water and air leakage;2.1.6 Keep floor of disposal system clean, no stacked mess and no wet；2.1.7 Check electromechanical equipment periodically according to different requirements, add or replace lubricant or solid lubricant and make periodic maintenance and overhaul to ensure equipment under good operation.2.2 Safe Operation2.2.1 Operator and repairer on the post must accept technology training and start working after tested for qualification;2.2.2 Cut off electricity before repairing electromechanical equipment and start operation after hang a maintenance tag on the switch; 2.2.3 On rainy or snowy days, operator should concern more about safe operation to prevent sliding when round-inspecting or operating disposal structure;2.2.4 Operator on every post should have safety labor protection wearing for safe protection;2.2.5 No wiping to running part of equipment when cleaning electromechanical equipment and surroundings; 2.2.6 Person not as operator is forbidden to start and stop electromechanical equipment of this disposal system.2.3 Repair and Maintenance：2.3.1 Operation management personnel and maintenance personnel should be familiar with electromechanical equipments maintenance regulations;2.3.2 Make periodic inspection, maintenance and anti-corrosion treatment to various valve, grate, ladder, piping, bracket and cover board of disposal structure and equipment and repair damaged lighting in time;2.3.3 Frequently check and fasten connecting parts in various equipment and replace consumable part in coupler periodically;2.3.4 Make open & close test for various piping valves periodically and add lubricant to lead screw;2.3.5 Check limit switch of electric gate valve and manual & electric interlock device, clean electric control cabinet and test various technological specifications periodically; 2.3.6 After a certain period of operation, check airproof at water pump filing or oil sealing with necessary treatment;；2.3.7 Besides daily maintenance, air blower, water pump and other mechanical equipment should have disassembly overhaul as the following operation time: air blower with accumulated operation time 10000h; centrifugal pump with accumulated operation time of 4000h; diving pump with accumulated operation time of 5000h; and those water pumps and air blowers not used frequently should have a disassembly overhaul once every three years;2.3.8 Clean connection piping and open channel between disposal structure and equipment once every year; 2.3.9 Make routine maintenance and repair according to requirements in every electromechanical equipments operation specifications. Chapter Three Waste Disposal Technical Design and Process Flow 3.1 Technical Design：This waste disposal system is used for industrial waste disposal in Degussa Specialty Chemicals (Shanghai) Co.,Ltd. The technical design for waste disposal includes the following seven parts:l Industrial waste collection, flow adjustment and homogenization;l Waste coagulation reaction and deposition；l Waste PH adjustment；l Waste biochemical treatment；l Disposed water filtering；l Water measured discharge；l Sludge disposal.3.1.1 Waste quantity:Industrial waste disposal capacity is designed as：20m3/d；designed flow is 2m3/H3.1.2 Waste quality index：Based on relevant data supplied by owner, industrial wastes quality is designed as： PH: 4.0-7.0 CODcr: 5000-20000 mg/ L； BOD5: 500-4000 mg/ L； SS: 3500-16000 mg/ L； 3.1.3 Standards of discharged water quality：As required by owner, waste should reach the following standards after disposal： CODcr=5002000 mg/L； SSRemoval ratio 95%； Cr1.5 mg/ L； Zn5.0 mg/ L； Cu1.0 mg/ L Pb1.0 mg/ L As0.5 mg/ LWaste up to standards will be discharged into municipal pipe network.3.2 Process flow and specifications3.2.1 Specifications on process flow： Please refer to the attached process flow chart for waste disposal process flow and the brief description is as follows: Industrial waste will be lifted into adjustment tank S-2801 for quality and quantity adjustment through inlet pipeline. With one jet blender in the tank, part of outlet water from lifting pump P-2801 in adjustment tank flows back to adjustment tank for blending to prevent suspended substance in the waste to deposit in the tank. The lifting pump in adjustment tank is started or stopped by liquid level transmitter LICA2801S in the tank. When liquid in the tank reaches high level, lifting pump in it will start automatically and lift the liquid in adjustment tank into coagulation tank R-2810A. And when liquid in the tank reaches low level, lifting pump will stop automatically. Whether liquid at high-high level or low-low level, system will send out alarm automatically. Coagulant FeCl3 will be added into coagulation tank R-2810A and blended by blender A-2810A so as to mix waste and coagulant quickly. Meanwhile, a PH meter PH2810A is installed in coagulation tank to test PH value in the tank. Liquid from coagulation tank flows into reaction tank R-2810B, into which lime milk will be added. Through blender A-2810B, lime milk and waste will be mixed quickly and another PH meter is installed in reaction tank PH2810B to control the input amount of lime milk. By adjusting input amount of lime milk, heavy metal and part of organic substance in waste will react with coagulant to form floc within an appropriate PH range.Liquid from reaction tank flows into flocculation tank R-2810C, in which macromolecule flocculant PAM will be added. Through blender A-2801C, PAM will mix with waste quickly. Floc and deposit in waste will become larger floc through effect of netting and bridging generated after flocculant PAM dissolves. Liquid from flocculation tank flows into vertical flow type deposition tank V-2315 for liquid and solid separation. The upper clear liquid flows to the following process for further disposal through overflow weir while sludge deposits to the sludge filler and is lifted into sludge tank V-2820 for further disposal through sludge pump P-2815 in deposition tank. Liquid from deposition tank flows into PH adjustment tank V-2840, in which H2SO4 will be added. Through blender A-2840, H2SO4 will mix with waste quickly. A PH meter PH2840 is installed in the tank to control the input amount of H2SO4 to ensure PH value in the tank within the range of 6.58.5. A lifting pump P-2840 is installed in PH adjustment tank and the pump is started and stopped by liquid level switch LSA2840V in the tank. When liquid in PH adjustment tank reaches high level, lifting pump in it will start automatically and lift the waste in adjustment tank into SBR tank S-2850 or S-2855. And when liquid in the tank reaches low level, lifting pump in the tank will stop automatically. Whether liquid at high-high level or low-low level, system will send out alarm automatically.Liquid from PH adjustment tank flows into SBR tank (abbreviation of Sequencing Batch Reactor Activated Sludge Process). The difference between SBR and general activated sludge process lies in the waste flowing into a biological reaction tank for different operation according to time sequence rather than flowing into every disposal unit in sequence. Its basic operation process is composed of 5 procedures: inlet, reaction, deposition, outlet and stand-by. One cycle starts from waste inlet and finishes till stand-by. During this cycle, all the processes are made in a reaction tank filled with aeration, which goes round and round ceaselessly so as to realize waste disposal. There are two SBR tanks for alternate operation and there are three air blowers with two in use and one for backup. Two air blowers separately supply air to two SBR tanks. The operation processes for every cycle is shown as follows: Water inlet/aeration 5.56HDeposition 1.5HWater outlet 0.5HStand-by 00.5HThe residual sludge in SBR reaction tanks S-2850/S-2855 will be transferred into sludge tank V-2820 for disposal. Liquid from SBR tank flows into buffer tank V-2860. If water from SBR meets discharge standards, it will be discharged into municipal pipe network through discharge pump P-2865. If it does not meet discharge standards, it will be lifted by lifting pump P-2860 in buffer tank into sand filter F-2860 for further disposal. Lifting pump in buffer tank is started and stopped by liquid level transmitter LICA2860V in buffer tank. When liquid in buffer tank reaches high level, lifting pump in it will start automatically and lift the waste in tank into sand filter. And when liquid in the tank reaches low level, lifting pump in the tank will stop automatically. Whether liquid at high-high level or low-low level, system will send out alarm automatically.Water from sand filter will be tested by nephelometer TURB2860F. If turbidity not reaches discharge standards, water will flow into adjustment tank S-2801 for further disposal while if turbidity reaches standards, water will flow into discharge tank V-2865. If water in discharge tank reaches discharge requirements, it will be discharged into municipal pipe network through discharge pump. If not, operator can call for tank car to ship outside. After operating a period of time, sand filter will have larger resistance in its filtering layer so pressure difference between inlet and outlet water in filter will become larger and larger. If pressure difference reaches at 0.05Mpa, pressure difference switch PDS2860F will send signal to PLC and system will send out alarm to operator for backwash. Water from backwash will be discharged into ditch. After backwash completed by hand, the process of filtering will continue. After sludge in sludge tank V-2820 is blended and condensed by blender A-2820, the upper clear liquid is discharged into ditch and condensed sludge will be transferred to frame type filter press F-2830 for dehydration through screw pump P-2830. After dehydration, filter cake will be shipped outside while filtered liquid discharged into ditch. Sludge screw pump P-2830 is controlled by liquid level switch LSA2820V, stopped at low liquid level, started by hand at high liquid level and alarm sent out at high-high liquid level. Waste discharged into ditch will be collected into well S-2820 and lifted into adjustment tank for further disposal through lifting pump P-2802 in collection well. The lifting pump in collection well is controlled by liquid level switch LS2802S, stopped at low liquid level and started at high liquid level.Chapter Four Disposal Structure, Equipment Function and Design ParametersWaste disposal project will involve in coordination of many disposal structures, such as adjustment tank, SBR tank, buffer tank and discharge tank, etc, electromechanical equipment, such as lifting pump, air blower, blender, sand filter, frame type filter press, etc and transfer pipeline and adjustment equipment between structure and equipment to realize various functions and reach the expected requirements. The followings are various disposal structure, electromechanical equipment function and relevant parameters of this project:4.1 Main structure and equipment： 4.1.1 Adjustment tank（S-2801 concrete tank on the ground）Function：Used for waste storage and quality & quantity balancing, installed with jet blender inside.Quantity： 1 unitDimension： 3000X3000X4250mmEffective volume： 30m3Effective stationary period：1.5 dayBlending style： Jet blendingRelevant equipment in the tank include：4.1.1.1 Adjustment tank lifting pump （P-2801）Quantity ： 1 setModel： CO500/30KFlow： 7m3/hDelivery lift： 20 mPower： 3.0kWManufacturer： LOWARA 4.1.1.2 Float ball level meter (LSA2801S)Model：MAC-3Quantity：1 unitManufacturer： Dalian MACApplicable temperature：0-504.1.1.3 Liquid level transmitter (LICA2801S)Model：LU11Quantity：1 unitManufacturer： FLOWLINEApplicable temperature：-40-704.1.2 Coagulation tank（R-2810A，carbon steel FRP anti-corrosion）Function：Offer space for coagulation reaction between coagulant and waste. Quantity： 1 unitDimension： 650X1450X1500mmEffective volume： 1.0m3Effective stationary period：0.5h4.1.2.1 Coagulation tank blender（A-2810A，Carbon steel lined with rubber）Function：Make coagulant and waste mix quicklyModel： JB350 X1500Quantity： 1 unitMotor power：0.37KWRotation speed：136r/minLeaf diameter：350mm4.1.2.2 PH meter (PH2810A)Model：InPro 3200/120/pt1000+2050eQuantity：1 unitMeasure range：014Manufacturer：METTLERTOLEDO4.1.3 Reaction tank（R-2810B，Carbon steel FRP anti-corrosion）Function：Offer space for chemical reaction between lime milk and substance in waste and generate deposit hereQuantity： 1 unitDimension：1300X1450X1500mmEffective volume：2.0m3Effective stationary period：1.0h4.1.3.1 Reaction tank blender（A-2810B，Carbon steel lined with rubber）Function：Make lime milk and waste mix quickly.Model：JB450 X1500Quantity： 1 unitMotor power：0.37KWRotation speed：115r/minLeaf diameter：450mm4.1.3.2 PH meter (PH2810B)Model：InPro 3200/120/pt1000+2050eQuantity：1 unitMeasure range：014Manufacturer：METTLERTOLEDO4.1.4 Flocculation tank（R-