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An Efficacy Assessment of Phosphate Removal from Drainage Waters by Modified Reactive Material.

ABSTRACT: Phosphates may pose a threat to the aquatic ecosystem when there is a connection or a path between the soil and the aquatic ecosystem. Runoff and drainage ditches connect arable land with the waters of the receiver. Phosphates in the runoff and the ditches contribute to the negative phenomenon of surface water eutrophication. In order to prevent it, certain reactive materials are used which are capable of the selective removal of compounds by way of sorption or precipitation. Zeolites can be distinguished among the many reactive materials. Within the present analysis, the modification of a reactive material containing zeolites was carried out using calcium hydroxide solutions of different concentrations. A certain concentration of calcium hydroxide was created for use in further studies. In order to characterise the new material, an analysis was done of the chemical and mineral composition, as well as the porous texture and morphology. The efficacy of phosphate removal for its typical concentrations in drainage waters in Poland was confirmed by way of an experiment. Using a modified reactive material as an element of landscape structures may reduce the negative impact of phosphates on the quality of surface water.

SUBMITTER: Grela A

PROVIDER: S-EPMC7085026 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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An Efficacy Assessment of Phosphate Removal from Drainage Waters by Modified Reactive Material.

Grela Agnieszka A Łach Michał M Mikuła Janusz J

Materials (Basel, Switzerland) 20200306 5

Phosphates may pose a threat to the aquatic ecosystem when there is a connection or a path between the soil and the aquatic ecosystem. Runoff and drainage ditches connect arable land with the waters of the receiver. Phosphates in the runoff and the ditches contribute to the negative phenomenon of surface water eutrophication. In order to prevent it, certain reactive materials are used which are capable of the selective removal of compounds by way of sorption or precipitation. Zeolites can be dis ...[more]

PMID: 32155873

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Project description:Surgical method improvements aim to optimize the patient experience. The problem of healing of the drainage tube hole has not received attention and is of concern because it can plague patient recovery. In this article we report on how we have improved the method of suturing the drainage tube hole and explore the safety and effectiveness of this method. Between December 2017 to August 2018, 102 patients underwent thoracoscopic lung resection (single port or single utility port) using different methods of suturing drainage tube holes. The intervention group received improved methods with subcuticular and intradermal suture and removal-free stitches, whilst the control group received a conventional mattress suture and fixed chest tube. A preset line was left to tie knots and close the hole after the removal of the chest tube. The stitches were removed 7-12?days after surgery. The baseline clinical features of the patients were subsequently analyzed. The objective and subjective conditions of scars were evaluated using the Vancouver Scar Scale (VSS) and the Patient and Observer Scar Assessment Scale (POSAS) at one month after surgery. The intervention group (n = 71) and control group (n = 31) had balanced baseline clinical characteristics. There were no significant differences between the two groups in terms of three-day postoperative pain and postoperative hospital stay. In the intervention group, three patients (4.23%) had wound splitting that required re-suturing, which was better than five patients (16.13%) in the control group (P?<?0.05). The incidence of pleural fluid outflow, wound infection, post-removal pneumothorax, chest tube prolapse and incisional hernia were not different between the two groups. We conclude that the objective and subjective evaluation results of scars were significantly different between the two groups (P < 0.05), and the experimental group was superior to the control group. A balanced result between aesthetic appearance and safety as regards video-assisted thoracic surgery can be achieved through the chest tube hole improved suture method. This method also improves the patient's recovery experience.

Dataset Information

An Efficacy Assessment of Phosphate Removal from Drainage Waters by Modified Reactive Material.

Publications

An Efficacy Assessment of Phosphate Removal from Drainage Waters by Modified Reactive Material.

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