Analysis of the Effectiveness of Wastewater Treatment in Activated Sludge Technology with Biomass Recirculation

CIUŁA, Józef

Analysis of the Effectiveness of Wastewater Treatment in Activated Sludge Technology with Biomass Recirculation

Architecture, Civil Engineering, Environment

Volume 15 (2022): Issue 2 (June 2022)

By:

Józef CIUŁA

Open Access

|Aug 2022

Figures & Tables

Biological reactor with the system of internal and external

Mutual correlations for BOD5 in the wastewater treatment process

Mutual correlations of COD parameters in the wastewater treatment process

Mutual correlations for total suspended solids in the wastewater treatment process

Mutual correlations of total nitrogen parameters in the wastewater treatment process

Mutual correlations of total phosphorus concentrations in the wastewater treatment process

Dendrogram of the effectiveness of concentration reduction to permissible values in the treated sewage

Dendrogram for the effectiveness of concentration reduction and load reduction in treated sewage

Monthly concentrations of pollutants in untreated and treated sewage in

Month	Total nitrogen mgN·dm^-3			BOD₅ mgO₂·dm^-3			COD_Cr mgO₂·dm^-3			Total phosphorus mgP·dm^-3			Total suspension [mg·dm^-3]
	UW	PTE	TW	UW	PTE	TW	UW	PTE	TW	UW	PTE	TW	UW	PTE	TW
January	69.54	63.26	7.10	407	293	4.78	940	614	25.2	13.64	12.68	0.38	383	187	9.77
February	66.49	61.41	7.30	397	299	4.67	853	578	44.7	10.16	7.18	0.37	363	194	10.25
March	61.68	60.14	8.81	267	209	4.49	1109	829	42.5	8.51	7.39	0.39	435	178	10.92
April	76.33	72.10	8.54	322	276	4.09	1079	824	55.0	6.72	6.52	0.46	334	167	6.25
May	73.53	70.15	7.34	545	263	5.36	1123	796	49.5	5.39	4.83	0.43	472	192	7.15
June	44.76	39.73	4.75	310	245	3.23	521	301	23.8	3.89	2.81	0.14	337	140	6.89
July	65.28	63.77	6.44	286	263	5.72	583	466	48.1	6.35	5.08	0.23	371	158	7.53
August	62.05	59.23	6.62	390	252	4.62	1458	801	39.0	7.46	7.10	0.36	316	194	10.42
September	60.39	59.90	5.63	330	284	4.14	720	531	32.2	6.78	6.07	0.41	343	203	10.65
October	70.62	60.49	8.62	356	268	5.11	820	528	49.3	9.24	7.70	0.62	454	190	7.11
November	77.11	75.53	8.10	368	287	2.78	1160	832	49.0	9.04	7.89	0.35	343	131	9.75
December	78.58	76.82	8.23	383	291	3.04	985	793	47.8	9.14	8.04	0.36	325	124	8.76

Scope of load reduction for individual substances contained in untreated and treated sewage

No	Name of substance	Load in untreated sewage [kg/d]	Load in treated sewage [kg/d]	Reduction scope of load of a given substance [%]
1.	Biochemical oxygen demand (BOD₅)	9216	117	98.73
2.	Chemical oxygen demand (COD_Cr)	23228	1065	95.41
3.	Total suspension	8966	295	96.70
4.	Total nitrogen	1691	168	90.06
5.	Total phosphorus	193	9.1	95.28

Comparison of N-NH4+ loads at the corresponding points of the technological cycle

No	Name of substance	Unit	Concentration value in untreated sewage	Concentration value in treated sewage	Scope of concentration reduction of a given substance [%]	Minimum required percentage of concentration reduction of a given substance [%]
1.	Biochemical oxygen demand (BOD₅)	mgO₂·dm^-3	361.64	4.45	98.77	90
2.	Chemical oxygen demand (COD_Cr)	mgO₂·dm^-3	942.36	1.66	99.82	75
3.	Total suspension	mg·dm^-3	377.36	8.79	97.67	90
4.	Total nitrogen	mgN·dm^-3	66.16	7.20	89.12	70-80
5.	Total phosphorus	mgP·dm^-3	7.93	0.38	95.21	80

DOI: https://doi.org/10.2478/acee-2022-0020 | Journal eISSN: 2720-6947 | Journal ISSN: 1899-0142

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Language: English

Page range: 123 - 134

Submitted on: Feb 15, 2022

Accepted on: Apr 20, 2022

Published on: Aug 9, 2022

Published by: Silesian University of Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

Biological reactor,

Pollution reduction efficiency,

Sludge recirculation,

Wastewater treatment

Related subjects:

Architecture and design,

Architecture,

Architects, buildings

© 2022 Józef CIUŁA, published by Silesian University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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Analysis of the Effectiveness of Wastewater Treatment in Activated Sludge Technology with Biomass Recirculation

Figures & Tables

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Figure 8.

Monthly concentrations of pollutants in untreated and treated sewage in

Scope of load reduction for individual substances contained in untreated and treated sewage

Comparison of N-NH4+ loads at the corresponding points of the technological cycle

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