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Sludge treatment method using pennisetum hybrid

A hybrid pennisetum and sludge treatment technology, applied in biological sludge treatment, etc., can solve the problems of large land occupation, long treatment time, and low applicability of treatment equipment, and achieve rapid removal and strong practicability

Inactive Publication Date: 2017-04-26
厦门市葳迎生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to many shortcomings such as large land occupation, long processing time, low applicability of processing equipment, and low sludge treatment rate, the composting treatment of sludge has not been able to enter the stage of industrialized treatment for a long time.

Method used

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Embodiment Construction

[0016] The following examples further illustrate the present invention.

[0017] The present invention comprises the following steps:

[0018] 1) Spread the sludge treated by urban domestic sewage plants in a treatment pit with a depth of 0.5m for plowing. The length and width of the treatment pit are adjusted according to the actual land use. Vertically insert a water pipe with a diameter of 3-5cm and a length of 1.5m, the distance between the intubations is 1m×1m, and the depth of the intubation is 30cm;

[0019] 2) Apply the urban sludge treated in step 1) on the hybrid pennisetum artificial grassland, sow hybrid pennisetum in the sludge with a distance of 15cm×20cm, fill the water pipe with water once every two days, when The hybrid pennisetum is cut when the plant height reaches 1.2m, and is repeatedly carried out until the treated sludge can reach the B-grade agricultural sludge standard; the hybrid pennisetum can be selected from Pennisetum americanum (L. )Leeke male ...

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Abstract

The invention relates to a sludge treatment method using pennisetum hybrid and relates to sludge treatment, and provides the sludge treatment method using pennisetum hybrid, wherein harmless treatment of urban sludge can be relatively thoroughly solved. The method comprises the following steps: 1) paving sludge treated by an urban household sewage plant in a pit to be ploughed, and inserting a water tube into the sludge in the treatment pit; and 2) applying the sludge treated in the step 1) on an artificial grassland of pennisetum hybrid, sowing the pennisetum hybrid in sludge, and injecting water into the water tube; when the plant height of the pennisetum hybrid reaches 1.2m, cradling the pennisetum hybrid and repeatedly the pennisetum hybrid till the treated sludge reaches a level B agricultural sludge standard. By treating the sludge in the artificial grassland of pennisetum hybrid, the method is high in practicality, and not only can effectively and relatively quickly remove nutritional elements, organic pollutants and heavy metals rich in sludge cakes of a household sewage plant in a long term, but also recycle the cut pennisetum hybrid as a carbon source.

Description

technical field [0001] The invention relates to sludge treatment, in particular to a sludge treatment method using hybrid pennisetum. Background technique [0002] With the improvement of my country's urban sewage treatment rate, the sludge output of urban sewage plants has also increased sharply. At present, only a small number of urban sewage treatment plants in the country are used for sanitary landfill, land utilization, incineration, and building material utilization, while most of them have not undergone standardized treatment and disposal. The sludge is rich in organic matter and other nutrients, and also contains a certain amount of heavy metals, viruses Harmful substances such as pathogens, parasite eggs, etc., without effective treatment and disposal, can easily cause secondary pollution to groundwater, soil, etc., directly threaten environmental safety and public health, and greatly reduce the environmental benefits of sewage treatment facilities. [0003] Judgin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02
CPCC02F11/02
Inventor 李燕忠陈娟
Owner 厦门市葳迎生物科技有限公司
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