金海湖湖水经精密过滤-超滤预处理后，经反渗透/纳滤系统脱盐。主要考察脱盐系统在不同混装方式和不同操作压力下的产水量和水回收率。待压力和流速稳定半小时后，记录脱盐系统产水量，计算水回收率。脱盐膜采用商品化聚酰胺4040卷式纳滤和反渗透膜组件（VNF2和ULP100，贵阳时代沃顿有限公司）。操作压力1.3-1.8MPa，进水含盐量7.5g/L，水温30±2℃，进水流量2m3/h，混装膜组件数为6-8支。测量精度取至小数点后两位。淡化系统淡水产量大于1.2m3/h，水回收率高于60%，达到任务书考核指标。\n
本数据集主要应用于苦咸水淡化研究。", "ds_source": "
实验获得。", "ds_process_way": "
操作压力1.3~1.8 MPa，进水含盐量7.5 g/L，水温30 ± 2℃，进水流量 2 m3/h的条件下，实验测得淡水产量，计算获得水回收率。", "ds_quality": "
(1)数据生产过程: 金海湖湖水经精密过滤-超滤预处理后，经反渗透/纳滤系统脱盐。待压力和流速稳定半小时后，记录脱盐系统产水量，计算水回收率。脱盐膜采用商品化聚酰胺4040卷式纳滤和反渗透膜组件（VNF2和ULP100，贵阳时代沃顿有限公司）。\n
(2)方法: 操作压力1.3 -1.8 MPa，进水含盐量7.5 g/L，水温30 ± 2℃，进水流量 2 m3/h，混装膜组件数为6-8支。测量精度取至小数点后两位。\n
(3)结果：淡化系统淡水产量大于1.2 m3/h，水回收率高于60%，达到任务书考核指标。", "ds_acq_start_time": "2020-07-20 00:00:00", "ds_acq_end_time": "2020-09-30 00:00:00", "ds_acq_place": "天津市滨海新区金海湖", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 105844, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "b5611b5b-4a0b-4af3-8fa3-3c5b9f46c99b.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "d6a6694f-4988-40e1-ac47-a19692c05b3d", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.5515" ], "quality_level": 3, "publish_time": "2021-10-22 15:26:54", "last_updated": "2025-05-29 17:26:50", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.MDBW.2021.19", "i18n": { "en": { "title": "Tianjin Jinhai Lake Water Desalination System Freshwater Production and Overall Water Recovery Rate Dataset (July-September 2020)", "ds_format": "excel", "ds_source": "
Experimentally obtained.", "ds_quality": "
(1) Data production process: Jinhai Lake water is desalinated by reverse osmosis/nano-filtration system after precision filtration-ultrafiltration pretreatment. After the pressure and flow rate are stabilized for half an hour, the water yield of the desalination system is recorded and the water recovery rate is calculated. The desalination membranes were commercialized polyamide 4040 rolled nanofiltration and reverse osmosis membrane modules (VNF2 and ULP100, Guiyang Times Walton Co., Ltd.).\n
(2) Methods: Operating pressure 1.3 -1.8 MPa, influent salinity 7.5 g/L, water temperature 30 ± 2 ℃, influent flow rate 2 m3/h, mixing the number of membrane modules for 6-8. Measurement accuracy is taken to two decimal places.\n
(3) Results: desalination system fresh water production is greater than 1.2 m3/h, water recovery rate is higher than 60%, to meet the task assessment indicators.", "ds_ref_way": "", "ds_abstract": "
The lake water of Jinhai Lake was desalinated by reverse osmosis/nanofiltration system after pretreatment by precision filtration-ultrafiltration. The main investigation of the desalination system in different mixing methods and different operating pressure under the water production and water recovery rate. After the pressure and flow rate were stabilized for half an hour, the water yield of the desalination system was recorded and the water recovery rate was calculated. The desalination membranes were commercialized polyamide 4040 rolled nanofiltration and reverse osmosis membrane modules (VNF2 and ULP100, Guiyang Times Walton Co., Ltd.). The operating pressure was 1.3-1.8MPa, the salt content of the feed water was 7.5g/L, the water temperature was 30±2℃, the feed water flow rate was 2m3/h, and the number of mixed membrane modules was 6-8. Measurement accuracy is taken to two decimal places. Desalination system fresh water production is greater than 1.2m3/h, water recovery rate is higher than 60%, to achieve the task book assessment indicators.\n
This dataset is mainly applied to the study of brackish water desalination.
", "ds_time_res": "", "ds_acq_place": "Jinhai Lake, Binhai New Area, Tianjin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Under the conditions of operating pressure of 1.3~1.8 MPa, feed water salinity of 7.5 g/L, water temperature of 30 ± 2°C, and feed water flow rate of 2 m3/h, the fresh water yield was measured experimentally and the water recovery rate was calculated.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "ds_topic_tags": [ "纳滤", "反渗透", "水回收率" ], "ds_subject_tags": [ "水文化学" ], "ds_class_tags": [], "ds_locus_tags": [ "天津市滨海新区金海湖" ], "ds_time_tags": [ 2020 ], "ds_contributors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_managers": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "category": "其他" }