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A system and a method for recycling coal mine drainage and power plant waste water with zero discharge

A treatment system and circulation treatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve poor coagulation and clarification effects, low density, No problems such as zero discharge of drained water have been seen

Active Publication Date: 2013-09-11
嘉兴笼列电子商务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that the price is cheap and the supply of goods is sufficient; however, due to the small density of coal particles, the sedimentation speed of the formed alum flowers is relatively slow, and the coagulation and clarification effect is not good; Yanzhou Mining (Group) Co., Ltd. resources, transform and use the desalinated and purified coal mine drainage water as boiler feed water, but there is still no explanation for the discharge of waste water
Ye Zhi'an and Yuan Guoquan from Xi'an Institute of Thermal Engineering conducted some research on the process of slow decarburization water treatment; Xu Zhen and Yang Baohong conducted experimental research on slow decarburization lime treatment; Wang Jing and Mao Jin did water moral clarification and Purification treatment has been done to a certain extent, but there is no practical application of zero discharge in the circulation treatment of drained water discharged from coal mines.

Method used

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  • A system and a method for recycling coal mine drainage and power plant waste water with zero discharge
  • A system and a method for recycling coal mine drainage and power plant waste water with zero discharge
  • A system and a method for recycling coal mine drainage and power plant waste water with zero discharge

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Embodiment 1

[0105] Such as figure 1 As shown, the zero-discharge system for downhole dewatering water and power plant wastewater recycling treatment and utilization of this embodiment includes a slow decarbonization treatment system for dewatering water 1, a sludge utilization system 2, a boiler sewage recycling system 3, a clean water utilization system 4, and a concentrated Drainage utilization system 5. The slow decarbonization treatment system 1 for draining water includes a draining pond 1-1 for storing underground draining water and a slow decarburizing treatment for slow decarburization of the draining water. The processing device 1-2, and the plate and frame filter press 1-3 for filter press dehydration treatment of the sediment produced by the slow decarburization treatment device 1-2 and the plate and frame filter press 1-3 for storage The slag mud pool 1-4 of the slag mud, the drainage pool 1-1 is connected to the underground drainage through the drainage water collection pipe 1-...

Embodiment 2

[0132] Combine image 3 The difference between this embodiment and Embodiment 1 is that the zero-discharge system for downhole draining water and power plant wastewater recycling treatment and utilization also includes an upper computer 6, which is used to automatically control the draining water slow decarbonization treatment system 1 The slow decarbonization control system, the boiler blowdown water recycling control system for automatically controlling the boiler blowdown water recycling system 3, and the clean water utilization control system for automatically controlling the clean water utilization system 4, the slow decarbonization control The system includes a first PLC module 7-1, a first RS-485 communication module 7-2 connected to the first PLC module 7-1, and a first person-to-person interaction module 7-3. The drain pool 1-1 A draining pool water level sensor 7-4 for real-time detection of the downhole draining water level in the draining pool 1-1 is provided, and th...

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Abstract

The present invention discloses a system and a method for recycling coal mine drainage and power plant waste water with zero discharge. The system comprises a coal mine drainage low-speed decarbonization treatment system, a sludge utilizing system, a boiler blowdown water recycling system, a clean water utilizing system and a concentrated drainage utilizing system. The coal mine drainage low-speed decarbonization treatment system mainly comprises a low-speed decarbonization treatment device; the boiler blowdown water recycling system mainly comprises a disc filter, an ultrafiltration water purifier, a security filter and a reverse osmosis water purifier; and the clean water utilizing system comprises a clean water reservoir, a first stage cooling tower and a second stage cooling tower. The method comprises steps of: 1, coal mine drainage low-speed decarbonization treatment; 2, sludge utilizing; 3, boiler blowdown water treatment and recycling; 4, clean water untlizing; and 5, concentrated drainage utilizing. According to the invention, the system and the method are novel and reasonable in design with zero discharge of both solid waste and waste water, energy-saving, environmental friendly, very practical, and high in promotion value; and recycling of waste water and full utilization of sludge can be achieved.

Description

Technical field [0001] The present invention relates to the technical field of water treatment, in particular to a zero-discharge system and method for underground drainage and power plant wastewater recycling treatment. Background technique [0002] In the zero-discharge system for underground drainage and power plant wastewater recycling, the softening, filtration and sludge treatment of the drainage drainage from the coal mine are the core of the system. Sewage treatment projects in the United States, Germany, Japan and other countries generally refer to the treatment of domestic sewage, construction sewage and industrial wastewater. Generally speaking, sewage treatment is divided into three steps: primary treatment (ie physical treatment), the effluent of the primary sedimentation tank enters the biological treatment equipment, there are activated sludge method and biofilm method, (the reactor of the activated sludge method has Aeration tanks, oxidation ditch, etc., the biof...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F11/12C02F11/00F23K1/00F23K3/00G05B19/418
CPCY02P90/02
Inventor 李宁侯媛彬张代刘海东雷宏彬李春光杜军文魏芳芳冯艳玲岳林王晶彭康利王鑫照
Owner 嘉兴笼列电子商务有限公司
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