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Modification method for saving operation cost of water treatment plant supplied with water from low turbidity water source

A technology of operating cost and water purification plant, which is applied in the field of upgrading and transformation of water purification plant, and can solve problems such as difficult treatment, high operating cost of treatment process, and low turbidity of water source water

Inactive Publication Date: 2016-03-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low turbidity and difficult treatment of water source water in water purification plants, high operating costs of conventional treatment processes, and water quality safety after transformation, the present invention provides a transformation method for low-turbidity water source water purification plants to save operating costs

Method used

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  • Modification method for saving operation cost of water treatment plant supplied with water from low turbidity water source

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specific Embodiment approach 1

[0014] Specific implementation mode 1: This implementation mode provides a transformation method for low-turbidity water source water purification plant to save operating costs, and the method is realized by the following steps:

[0015] Step 1: Investigate the water quality and quantity changes of the water source water of the water purification plant in different seasons, and evaluate the treatment effect and operating cost of the existing process of the water purification plant;

[0016] Step 2: Under the conditions of low turbidity and low pollution in the source water of the water purification plant, implement measures such as upgrading, rebuilding, and optimizing operating parameters for each process link;

[0017] Step 3: Evaluate the benefits of the effluent water quality and economic costs of the water purification plant after the implementation of the transformation plan to achieve the goal of saving operating costs.

specific Embodiment approach 2

[0018] Embodiment 2: This embodiment is a further description of the method described in Embodiment 1.

[0019] The water quality change mentioned in step 1 specifically refers to: According to the collected long-term operation monitoring data of the water plant, the report is produced to obtain data such as water volume change, raw water and factory water quality, chemical consumption, power consumption, and water consumption. . Among them, the production report includes the water source water quality report, the water quality statistical report, the water plant power consumption report, the factory water quality report and the production report.

[0020] The change of water volume mentioned in step 1 refers to the daily average water supply volume and the 24h hourly water volume treated by the water plant in the past 2 years (since the start of the assessment, the range of data within 2 years is given).

[0021] The water quality of raw water mentioned in this embodiment sp...

specific Embodiment approach 3

[0022] Embodiment 3: This embodiment is a further description of the method described in Embodiment 1.

[0023] The treatment effect of the existing process described in step 1 specifically refers to: the existing conventional process of the water purification plant mainly includes mixing, coagulation, sedimentation, filtration, disinfection, analysis of the removal rate of turbidity, organic matter and other indicators of each treatment unit and the final The control range of various water quality indicators in the factory water, and the water quality characteristics of the sludge discharge from the coagulation tank, the sludge discharge from the sedimentation tank and the backwash wastewater from the filter are analyzed.

[0024] The mixing described in this embodiment mainly includes mechanical mixing and hydraulic mixing. adopted by the factory.

[0025] Coagulation: a method of purifying wastewater by adding a coagulant to the treated water to separate the colloidal subs...

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Abstract

The invention provides a modification method for saving the operation cost of a water treatment plant supplied with water from a low turbidity water source. The modification method comprises the following steps: investigating the change situations of water quality and water amount of water in the water source of a water treatment plate in different seasons, evaluating the conventional technological processing effect and operation cost of the water treatment plant; if the water in the water source of the water treatment plate meets the conditions of low turbidity and low pollution, reconstructing and enhancing each technical step, optimizing the operation parameters; after reconstruction, and evaluating the quality of processed water and cost so as to achieve the goal of reducing operation cost. Through evaluating the comprehensive operation cost and determining the optimal operation parameters by using an optimization processing unit, the water quality of water source of a water treatment plant, processing effect of each technical unit, the water quality indexes of processed water, and safety are all combined with the overall economic cost of the water treatment plant; moreover, the wastewater generated during the production process is returned together to enhance the coagulation efficiency of low turbidity water, the water resource is also saved, the sewage discharge is reduced, and the method is very important for the upgrading and reconstruction of the water treatment plant.

Description

technical field [0001] The invention is an upgrade and transformation of the existing low-turbidity water purification plants, relates to a transformation method for comprehensively saving operating costs of urban water purification plants, and belongs to the technical field of upgrading and transformation of water purification plants. Background technique [0002] With the mandatory implementation of the "Drinking Water Hygienic Standard" (GB5749-2006) and the promulgation of the "Water Pollution Prevention and Control Action Plan (Water Ten Measures)", more stringent water quality requirements and professional management levels have been put forward for existing urban water supply plants. How to ensure that the water quality meets the requirements of the new national standard, in line with the national concept of "energy saving and emission reduction" and "energy saving and open flow" to save costs to the greatest extent, protect water resources, and save water consumption ...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/001C02F1/52C02F2001/007C02F2201/007C02F2209/02C02F2209/11C02F2209/40C02F2301/08
Inventor 徐勇鹏崔福义时文歆朱世俊陈停
Owner HARBIN INST OF TECH
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