Water treatment method for emergency treatment of sudden petroleum pollution to drinking water
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An emergency treatment and oil pollution technology, applied in the field of water treatment, can solve the problem of poor removal effect of sudden oil pollution in raw water, and achieve good removal effect, high operating efficiency and simple operation
Active Publication Date: 2014-12-24
哈尔滨工业大学高新技术开发总公司
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[0004] In order to solve the problem that the conventional treatment process of the water supply plant has a poor effect on removing sudden oil pollution in raw water, the present invention provides a water treatment method for emergency treatment of sudden oil pollution in drinking water, providing a solution for sudden oil pollution accidents in drinking water an effective treatment process
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specific Embodiment approach 1
[0011] Specific embodiment one: the water treatment method for removing petroleum pollutants in raw water in this embodiment is carried out according to the following method:
[0012] 1. Take 1L of raw water into a 1L beaker and add 60 mg·L -1 Polyaluminum chloride, the coagulation stirring program is divided into 7 sections according to the speed, respectively: the first section is 30 seconds, the speed is 120r / min; the second section is 1 minute, the speed is 200r / min; the third section is 1 minute, the rotation speed is 180r / min; the fourth section is 2 minutes, the rotation speed is 140r / min; the fifth section is 4 minutes, the rotation speed is 90r / min; the sixth section is 4 minutes, the rotation speed is 50r / min; The segment is 4 minutes, and the rotating speed is 40r / min. Dosing 20mg·L after the end of the third stage of coagulation -1 Powdered activated carbon.
[0013] 2. After the coagulation stage is over, let it stand for 30 minutes, and take the supernatant to...
specific Embodiment approach 2
[0015] Specific embodiment two: the water treatment method for removing petroleum pollutants in raw water in this embodiment is carried out according to the following method:
[0016] 1. Take 1L of raw water into a 1L beaker and add 40 mg·L -1 Polyaluminum chloride, the coagulation stirring program is divided into 7 sections according to the speed, respectively: the first section is 30 seconds, the speed is 120r / min; the second section is 1 minute, the speed is 200r / min; the third section is 1 minute, the rotation speed is 180r / min; the fourth section is 2 minutes, the rotation speed is 140r / min; the fifth section is 4 minutes, the rotation speed is 90r / min; the sixth section is 4 minutes, the rotation speed is 50r / min; The segment is 4 minutes, and the rotating speed is 40r / min. Dosing 40mg·L after the end of the third stage of coagulation -1 Powdered activated carbon.
[0017] 2. After the coagulation stage is over, let it stand for 30 minutes, and take the supernatant to...
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Abstract
The invention discloses a water treatment method for the emergency treatment of sudden petroleum pollution to drinking water, relates to a water treatment method, and aims to solve the problem of poor elimination effects of a conventional treatment process for a water supply plant on the sudden petroleum pollution to raw water. The method comprises the following steps: performing coagulation sedimentation treatment on raw water, and feeding powered activated carbon in an initial coagulation stage to effectively remove petroleum pollutants. According to the method, the adsorption of the powdered activated carbon is combined before a conventional water treatment process, and effluent is treated by the conventional process, so that the removal rate of the petroleum pollutants in the raw water can maximally reach 86.73 percent, sudden high-concentration petroleum pollution in the raw water can be effectively treated, the petroleum concentration of the effluent is lower than 0.3mgL<-1>, and a requirement for the petroleum concentration of the effluent is met. Compared with an independent conventional water treatment method, the water treatment method has the advantages that the removal rate of the petroleum pollutants in the water is higher than 51.73 percent, and good removal effects are achieved. The treatment method has the advantages of simplicity in operation, high operation efficiency, working reliability and broad popularization prospect.
Description
technical field [0001] The invention relates to a water treatment method, which is mainly used for emergency treatment of drinking water, in particular to a water treatment method for sudden oil pollution by powder activated carbon adsorption combined with a conventional treatment process. Background technique [0002] Petroleum is a complex mixture of various hydrocarbons such as alkanes, cycloalkanes and aromatics. Petroleum products such as gasoline, kerosene, diesel, and lubricating oil can be released into the environment through accidents, administrative spills, and illegal discharges in industrial processes. [0003] After oil enters the water body, it will seriously affect the sensory indicators of the water body, such as color and odor, and will lead to a decrease in the concentration of dissolved oxygen in the water body, endangering the survival of aquatic organisms. After oil enters the water body, it will soon form a layer of oil film on the surface of the wate...
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