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Plant decontamination method for nitrogen and phosphorus in sludge

A technology for plant purification and sludge, applied in chemical instruments and methods, water pollutants, biological sludge treatment, etc., to achieve good purification effect, strong adaptability, and good decontamination effect

Inactive Publication Date: 2018-02-23
GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic and foreign research on constructed wetland plants mainly focuses on the decontamination effect and decontamination mechanism of plants, and how to compare the decontamination effect, interspecific differences and adaptability of plants according to the physiological characteristics of plants and other indicators methods are less reported

Method used

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  • Plant decontamination method for nitrogen and phosphorus in sludge
  • Plant decontamination method for nitrogen and phosphorus in sludge
  • Plant decontamination method for nitrogen and phosphorus in sludge

Examples

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Embodiment 1

[0029] A kind of embodiment of the plant purification method of nitrogen and phosphorus in the sludge of the present invention, this embodiment takes wetland plants as the main research object, utilizes the artificial planting plastic box, collects the more seriously polluted sedimentary sediment of Guangzhou River, Store in artificially planted plastic boxes, plant the test plants in it, inject water regularly to simulate the water environment for plant growth, and dynamically monitor the growth of wetland plants, photosynthetic physiological and ecological characteristics, and sediment components. Through the experimental research on wetland plants , to reveal the physiological and ecological characteristics of plants and their purification effects on sludge, and to screen out excellent wetland plants, which will provide experimental basis for the optimal design of constructed wetland sewage and sludge treatment systems, plant configuration, and improvement of decontamination ...

Embodiment 2

[0085] In this example, the purifying effects of the single planting of Zailihua, Pacellaria macrophyllum, and water poppy and their combined configurations were studied and analyzed.

[0086] (1) Collect the more seriously polluted river sediment sediment and put it in a container with a closed bottom. The height of the sludge is about two-thirds of the height of the container.

[0087] (2) The following plants were planted on the mud-filled container: Zailihua, Pavelia macrophylla, Water Poppy, and a 1:1:1 mix of the three plants.

[0088] (3) Three kinds of plants, Zailihua, Pavelia macrophylla, and Poppy, are planted individually with a row spacing of 20cm×20cm, and three kinds of mixed plants are planted at a ratio of 1:1:1, and the row spacing between plants is also 20cm×20cm.

[0089] (4) Manage according to normal field management methods to maintain the normal growth of plants, and at the same time, regularly inject tap water to keep the water level of the container 2...

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Abstract

The invention discloses a plant decontamination method for nitrogen and phosphorus in sludge. The method comprises the following steps: planting a wetland plant in the sludge, wherein the wetland plant is at least one of thalia dealbata, water poppy, cattail, angel flower, clinopodium urticifolium, canna, ruellia brittoniana, bamboo reed, echinodorus macrophyllus, acorus calamus, orris, philodendron selloum and alocasia. According to the plant decontamination method, the specific wetland plant is used for decontaminating the sludge, particularly for decontaminating the nitrogen and the phosphorus in polluted bottom mud; the decontamination effect on the sludge is good, and wild wetland plant resources are fully used; multiple wetland plants with high adaptability, good decontamination effect and high landscape value can be selected; favorable conditions are created for reasonable construction of an artificial wetland ecological system.

Description

technical field [0001] The invention relates to a method for plant purification of sludge, in particular to a method for plant purification of nitrogen and phosphorus in sludge. Background technique [0002] The physiological characteristics of constructed wetland plants and the interaction between communities have a profound impact on the ecological functions of wetlands. Aquatic plants have the advantages of low investment, easy management, good purification effect, and good ecological benefits for sewage and sludge purification. Researchers are paying more and more attention. Plants are an important part of the constructed wetland purification system, and they play an important role: they can directly absorb nutrients available in sewage and sludge, absorb and enrich heavy metals and some toxic and harmful substances; transport aerobic microorganisms in the root zone Oxygen; enhances and maintains the hydraulic transport of the medium; root exudates provide a carbon sour...

Claims

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Application Information

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IPC IPC(8): C02F11/02
CPCC02F11/02C02F2101/105C02F2209/16C02F2209/20
Inventor 姚睿胡峰张潇潇蔡锡安曾小平范京
Owner GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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